The over-enjoyment and/or anticipation of eating a banana. Often occurs after eating.
may include, but not limited to:
moaning
groaning
weakening in the knees
swaying back and forth
saying random comments such as: HOLYFU JESUS!!!!! and NOTAFINGA!!!!!!!!
Phillip: look at that dude over there...
pancho:yeah .......hes having a bananagasm
Phillip:totally
guy having bananagasm: HOLY FU JESUS!!!!!!!