1. The act of riding shaft, dick, or penis, not literally though.
2.Hyping someone up.
1. T.caff sucks in football, he can't catch Dustin: no that boy T.caff is a beast he catches everything. Strapp: Sack Alert Sack Alert!!!

2. Damn B.Orr can freestyle on the sneak he's up there with Cassidy. Strapp: Sack Alert Sack alert
by TcafTKO September 9, 2010
Get the Sack alert mug.