wax dart 

Phrase describing an excessive buildup of unused semen over time, jokingly said to have hardened into a form resembling a dart.

The term was coined by the late, great comedian Bill Hicks.

Next time I cum, it's gonna be like a wax dart shooting out of my dick.

wax dart by kevin j.k. March 26, 2007

Hot Wax Dart 

(noun) A forceful, high-velocity shot of semen, typically pressurized by a long-term buildup resulting from:

1. Infrequent tug sessions

2. Denial of sex or

3. Inconclusive vaginal/ oral copulation

Sex-starved for months, Carlos finally bedded Vanessa. After twelve seconds of furious thrusting a painful spike in his ball-pressure erupted, firing a deadly Hot Wax Dart directly into Vanessa's cervix
....and therefore scoring a Balls-eye.

Hot Wax Dart by PaulAllensCard February 4, 2015