a light smack upside the head, the intensity of which is more akin to ruffling someone's hair than to any real attempt to actually smack or harm the person. Originally heard/learned by submitter in: Montreal, QC, Canada.
She laughed at the teasing and gave him a quick smuck of warning.
She arched a brow at the taunt, and smucked him in response.
Definitions include: We will have to work out how much we owe each other, won't we? Thull 'e tu be (There will have to be) a recknin (a calculation or discussion) not it? (won't there?) This is in Nottinghamshire dialect and 'not it' is used for isn't it, don't we, aren't they, do you agree, wasn't it, weren't they, didn't he / she /it, won't you, won't they