Can’t help vs can’t help itWatch
This post addresses native English speakers.
Does it make sense to you if you hear «*Can’t help!*» for «*(I) can’t help it!*»? Is it correct slang?
"Can't help" normally means "I can't help you" or "I can't help with that". For example if a teacher says "there's an open day on Saturday" you could reply "can't help, I'm busy".
"Can't help it" or "I can't help it" means "I do it automatically" or "I can't stop doing it". For example, if someone told you to stop biting your nails but you couldn't, you could say "can't help it".