From Longman Dictionary of Contemporary Englishthere’s no holding somebody (back)there’s no holding somebody (back)spokenENTHUSIASTICENJOY/LIKE DOING something used to say that someone is so determined to do something that you cannot prevent them from doing it → hold
Examples from the Corpus
there’s no holding somebody (back)• For Casey, there was no holding back when it came to music. 