Sup baby means: If you say “Sup baby!” to a male member of the opposing sex, they are bound to make out with your. You can use it to describe the act of making out. Suppa’ing can also be described in the active and passive forms. (in Community Dictionary, added by Gauge Gill)
What else does Sup baby mean?
- Baby, verb to sup If one “sups” another, the other person is entitled to have an affair with them. (in Community Dictionary, added by Leonor Hernández)