1) a predominately male gathering, usually used when referring to a party or social gathering.
2) a situation where the ratio of pimps to hos is greater than 2 to 1
3) sausage fest
"Where were all the bitches last night?! Total testicle festival."
When all of the guests at a particular party are male.
Danny hoped his party would attract tons of hot local bitches, but as the night progressed it became clear that his living room had become a complete testicle festival.
John had a gig at his place, but forgot to invite chicks. Turned out to be a bona fide testicle festival.
See "Pickle Party" - Too many guys...not enough sluts...therefore Pickle Party
ooooohhhh..i went to the 10th Reunion of Bros! Total Pickle Party, they were still pumping semen from that gay cunts stomach! ooooohhhh...