When a girl is giving you a blowjob and you pull your dick out of her mouth at the last second and cum in her eyes and slap her ears, resulting in a blinded effect and ringing in her ears.
I gave Suzy a flashbang last night! She got so pissed, but it was worth it!
to have sex at the "speed of light." Almost every time a guy flash bangs a girl, it is known to be a huge disappointment and rumored around the workplace or school for months.
Dude, I was so embarrassed when I flash banged her.
I'll be over in a minute when I'm done flash banging this chick.
How come I always flashbang my girl?
He always flash bangs me!
The act in which a female gets a light bulb shoved into her baby maker by someone else (glass end first), and then that person proceeds to give the daring, brave and very stupid female partner a swift punch to the lower gut, thus popping the light bulb. Named crudely after the flashbangs used by law authority that pop and disoriented with a bright flash of light.
She said she wanted to try something new in bed, so I gave her a flashbang.