When you're supposed to cum (bust) on a girl's face in a porno but you miss her face or can't produce any cum at all.
Director: Ok Tyrone, now imam need you to bust oh her face.
Tyrone: alright boss- (misses her face)
Director: God fucking damn it Tyrone not another blunderbust!
Tyrone: alright boss- (misses her face)
Director: God fucking damn it Tyrone not another blunderbust!
by RE4LITY December 14, 2016
Used to describe a male orgasm, whereby upon reaching ejaculation, a particularly large volume of semen is exerted from the bellend, usually accompanied by lacrimation as the man's entire life achievements and sense of self-worth flash before his eyes in an ephemeral episode of acute post-nut clarity.
"I'm about to blunderbust a nut!"
by shitstained mattress February 17, 2020
Any situation or incident that outright sucks; used comically to alleviate said suckage. Best referred to in a silly voice of one's spontaneous choosing.
Frank woke up hung-over and squinted across the room to his friend. He utters roughly: "what a blunderbust."
by Quack Banyon February 3, 2010
friend 1: ay yo queef chief how was the bloody blunderbust?!?!
friend 2: *dead from internal bleeding*
friend 2: *dead from internal bleeding*
by flyingzombiepig August 31, 2022