Slap

A slap is when you are struck with an open hand, which is acceptable if performed by a female. However, if a bloke slaps as opposed to punches you then that means he is gay.

Jap slapping is a somewhat derogatory term for oriental Martial Arts.

Also a slang term for make up (as applied by an over the hill slapper before venturing out to grab-a-squaddie in a Sticky Carpet).