A champagne lip smack is a procedure a female would use to wake her partner from sleep.
First she must undress completely, then straddle her partners face, putting her lovely labia against his/her peaceful sleeping lips.
Next she pours her favorite champagne down the front of her breasts, allowing the bubbly liquid to flow down, across her labia and in to her partners lips causing them to wake up delighted by the surprise.
"Mom, my husband won't wake up, he keeps sleeping through his alarm."
When there’s an African (Man/Woman) on the train with most likely, Gum or other chewing products in their mouth. The sound of their big lips smacking over-powers the sound of the train rumbling and noise-cancelling headphones.
Trazza: I was on the train back home and some bastard was giving me the African Lip-Smack Torture.