To lead someone on. Pretending you have interest/feelings for them when in actuality you don't.
Jack Jack'd the daylights out of her and she's still in recovery.
by The Oppa's Club June 07, 2013
2 more definitions
A slang expression for the Jack Daniels whiskey.
"Jezz.. i drank a whole bottle Jack D yesterday at the club.. damn i was gone for the rest of the night.."
by mtd- February 18, 2006