When you underestimate a particualr cause of somebody or something. Second guessed certain opportunities. Being amazed. Shock by a significant things. Sudden wonder.
friend 1: Brah I cant believe that we lost to them pussy's.
friend 2: I know man we was sleeppin on them fo real.
friend 2: I know man we was sleeppin on them fo real.
by Calvin Secrest December 03, 2007
Get the sleeppinmug.