diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bb83ee..b080ef5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 * [#277](https://github.com/mongoid/mongoid-slug/pull/277): Migrate Danger to use danger-pr-comment workflow - [@dblock](https://github.com/dblock).
 * [#274](https://github.com/mongoid/mongoid-slug/pull/274): Added support for scoping slugs by multiple fields - [@mikekosulin](https://github.com/mikekosulin).
 * [#279](https://github.com/mongoid/mongoid-slug/pull/279): Replace deprecated `__find_args__` with `Array#flatten` - [@samiFakhfakhScalingo](https://github.com/samiFakhfakhScalingo), [@aurelien-reeves-scalingo](https://github.com/aurelien-reeves-scalingo).
+* [#280](https://github.com/mongoid/mongoid-slug/pull/280): Remove deprecated method multi_arged? - [@johnnyshields](https://github.com/johnnyshields), [@aurelien-reeves-scalingo](https://github.com/aurelien-reeves-scalingo).
 * Your contribution here.
 
 ## 7.0.0 (2023/09/18)
diff --git a/lib/mongoid/slug/criteria.rb b/lib/mongoid/slug/criteria.rb
index 656439b..80ca7fd 100644
--- a/lib/mongoid/slug/criteria.rb
+++ b/lib/mongoid/slug/criteria.rb
@@ -26,11 +26,13 @@ class Criteria < Mongoid::Criteria
       # @example Find by multiple slugs.
       #   criteria.find([ 'some-slug', 'some-other-slug' ])
       #
-      # @param [ Array<Object> ] args The ids or slugs to search for.
+      # @param [ Array<Object> ] slugs The ids or slugs to search for.
       #
       # @return [ Array<Document>, Document ] The matching document(s).
-      def find(*args)
-        look_like_slugs?(args.flatten) ? find_by_slug!(*args) : super
+      def find(*slugs)
+        return find_by_slug!(*slugs) if look_like_slugs?(*slugs)
+
+        super
       end
 
       # Find the matchind document(s) in the criteria for the provided slugs.
@@ -41,21 +43,22 @@ def find(*args)
       # @example Find by multiple slugs.
       #   criteria.find([ 'some-slug', 'some-other-slug' ])
       #
-      # @param [ Array<Object> ] args The slugs to search for.
+      # @param [ Array<Object>... ] slugs The slugs to search for.
       #
       # @return [ Array<Document>, Document ] The matching document(s).
-      def find_by_slug!(*args)
-        slugs = args.flatten
+      def find_by_slug!(*slugs)
+        slugs = find_args(slugs)
         raise_invalid if slugs.any?(&:nil?)
-        for_slugs(slugs).execute_or_raise_for_slugs(slugs, args.multi_arged?)
+        for_slugs(slugs).execute_or_raise_for_slugs(slugs)
       end
 
-      def look_like_slugs?(args)
-        return false unless args.all?(String)
+      def look_like_slugs?(*slugs)
+        slugs = find_args(slugs)
+        return false unless slugs.all?(String)
 
         id_field = @klass.fields['_id']
         @slug_strategy ||= id_field.options[:slug_id_strategy] || build_slug_strategy(id_field.type)
-        args.none? { |id| @slug_strategy.call(id) }
+        slugs.none? { |slug| @slug_strategy.call(slug) }
       end
 
       protected
@@ -94,10 +97,16 @@ def for_slugs(slugs)
         end
       end
 
-      def execute_or_raise_for_slugs(slugs, multi)
+      def find_args(args)
+        args = args.flatten
+        args.uniq!(&:to_s)
+        args
+      end
+
+      def execute_or_raise_for_slugs(slugs)
         result = uniq
         check_for_missing_documents_for_slugs!(result, slugs)
-        multi ? result : result.first
+        slugs.size == 1 ? result.first : result
       end
 
       def check_for_missing_documents_for_slugs!(result, slugs)
diff --git a/lib/mongoid/slug/unique_slug.rb b/lib/mongoid/slug/unique_slug.rb
index 3132129..f79bd8f 100644
--- a/lib/mongoid/slug/unique_slug.rb
+++ b/lib/mongoid/slug/unique_slug.rb
@@ -44,9 +44,8 @@ def highest_existing_counter
 
         def sort_existing_slugs
           # remove the slug part and leave the absolute integer part and sort
-          re = /^#{Regexp.escape(@slug)}/
           @sorted_existing = existing_slugs.map do |s|
-            s.sub(re, '').to_i.abs
+            s.delete_prefix(@slug).to_i.abs
           end.sort
         end