Flacc 

When she a little flat but call her thicc

That girl over there is flacc

Flacc by Coreyy Webster October 9, 2019

Flacc 

To be flacc't is to be slammed against the vaginal wall with a soft cock repeatedly. Derived from the word flaccid

Also relevant when some dimwit can't find the right hole.

Stop flaccing me, harden the fuck up or get off!

Wrong hole, flaccer.

Flacc by Flaccid and passive January 6, 2012

flacc' 

pronounced like glass with an f. Short for flaccid. Means not cool.

hey bro that was pretty flacc'

flacc' by flaccman November 3, 2018

Flacc-off 

To experience an explosive discharge of arousal that occurs when watching Baltimore Ravens quarterback Joe Flacco effortlessly throw a perfect spiral 40-yard pass to Derrick Mason or Mark Clayton.

what a pass! excuse me while I go into my room and Flacc-off

Flacc-off by alexeipgil February 6, 2009

Flacc Out 

To back out of something at the last minute. Similar to "pussy out." Derived from the word "flaccid," and pronounced "flass out." When one flacces out, his flaccing out is compared to his penis going soft right before a critical juncture in a sexual encounter.

Aaron: Hey bro I don't think I can come rage tonight, I'm feeling sick.
Bro: Aw come on man don't flacc out on me.

Chad: Hey dude why wasn't Aaron there last night?
Dude: Bro told me he flacced out at the last minute.
Chad: What a flacchole.

Flacc Out by FightOn&FlaccOut June 3, 2013

Flaccid eater 

Someone who can’t get it up but still wants to please his lover

Ed can’t get an erection but still gives his wife oral sex. Ed is a Flaccid eater

Flaccid eater by Kraven morehead February 10, 2023

Flaccidgasted 

Limply surprised; not quite as astonished as flabbergasted

Ryan G: I'm not quite flabbergasted

Klark C: Oh, so you're flaccidgasted?

Flaccidgasted by quayleman2 December 31, 2012