A variation on a handjob, a slam junk is performed by jumping in the air with your arm outstretched, then slamming your hand, masturbation-style, onto the recipient's dick as if dunking a basketball. The more preferable variety of this position is performed with the recipient at a slightly higher elevation of 10 feet, although this is optional.
by ACID13X May 26, 2012
Get the slam junkmug. by raygeebee May 2, 2015
Get the slam frymug. by jch2617 December 27, 2019
Get the House Slammingmug. by DeSexbot March 5, 2022
Get the Pelvic-Slammingmug. The act of a girl (in the cowgirl position) lifting herself up until the penis is just about to fall out then sliding back down like a fireman on a pole.
by IronEyes January 8, 2018
Get the fireman slammug. 
