Its a smacking swear word tester!!!

"smack for brains."

"Shut the smack up."

"We're in deep smack."

"Yeah, well I think you're talking smack."

"You daft smack."

"We got absolutely smack faced last night."

"Not this guy - he knows his smack."

"Anyone else smell smack?"

"I'm up smackcreek without a paddle."

"Literally covered with smack."