Smooth lippies / Slippies / S-lippys.
first coined by the BiG. P (the Pat man) Diddy To discribe head jobs.
Verb: The act of giving oral sex to a male. A female will fold her lips over her teeth to make her mouth more "smooth" This reduces the chance of injury to said male.
Ohh man she would give some wicked slippies.
The girl is on the rag so I can only cop smooth lippies this week.
She needs to suck a dick. Some Smooth lippies would ease her stress