A goatgasam is a sound that can be made during orgasm that reminds the other party, if there is one, of a goat's vocal projection.
Billy:When Sally came, she screamed my name like a goat, oh Billllllyyyyyyy.
Jake:She totally had a goatgasam!
Jake:She totally had a goatgasam!
by Jerome Tyrone August 25, 2007
When you nut in your girls mouth underwater and she has to swim to the surface with her cheeks full.
by Jerome Tyrone February 28, 2019