Top definition
Act of love that involves the simultaneous use of at least three genitals, from this the name "tri" + "gen"
Richard: Hi dude, how did your Friday night end up?
Peter: Awasome! Jimmie and I met Annabritta and we had a fantastic trigen!
Richard: Cool man, you finally did it!
by themilfonian January 27, 2014
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug