Bump in the Night 

Someone that you ignore and find as irrelevant as hitting a squirrel in the middle of the night with your car.

Hitting the animal creates a bump that easily felt but subtle enough to where you think you've just ran over a pothole or some other object but you simply ignore as you want to carry on driving home from a long day.

Jimbo: Why are you even talking to me? I don't know you, you are nothing. You are just a Bump in the Night.

Bump in the Night by NukeEmWins April 22, 2020

Bump in the Night 

Bumping uglies in the night, much like a one night stand

person 1: Woah, I heard she got STD's from her last bump in the night.

person 2: Yeah I feel sorta bad for her, dumb bitch, she was smexy though.

Bump in the Night by pwjz March 15, 2009

Bump in the night 

To get fully kitted with battle rattles. To investigate and harm people that'll harm you. Or others

What was that sound? It's time go bump in the night

Bump in the night by Bamaboy1203 June 23, 2022

Bump-in-the-Night 

Same as a Pounce-and-Fuck, except with a more stealth and seductive connotation.

"That guy is Antonio Banderas-hot: he's a definite Bump-in-the-Night."

Bump-in-the-Night by ForTheLoveOfEros May 19, 2005