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1.
When a person straps a dildo to their head and fucks someone with it, pretty much headbutting the other person.
My cooch hurts so much from Alex's strap head.
by F-BOMBheart March 14, 2011
 
2.
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.
Jenny and Alice got the strap-on all wet when Alice gave Jenny strap head.
by SynergyFactor December 16, 2009