A quadbag is when four people simotaneously t-bag one person at the same time. The "quadbagee" has four different scrotems in his/her mouth. Quadbagging is the ultimate form of pwnage, and is extremely rare to see virtually (in Halo 2) or in real life.
Jason got quadbagged by Joe, Bret, Sean, and Bob.
by Nerdis June 23, 2007