To sup. i.e. To show interest in a member of the opposite sex with verbal expression.
"I heard everyone's supping that new chick"
by Cleburn P Wifflestaff December 04, 2008
1 more definition
The act of walking casually as you nod your head in a "sup motion" to any bystanders that pass by.
As Dylan walked through the mall, he was supping all fellow mall goers.
by Concussion-Head McGee March 29, 2012