When a person straps a dildo to their head and fucks someone with it, pretty much headbutting the other person.
by F-BOMBheart March 30, 2011

Strap Head is when two women (usually lesbian or bi-sexual) use a strap-on to simulate fellatio. One woman wears the strap-on and another sucks on it, simulating a blowjob.
by SynergyFactor December 20, 2009
