"sick flex" is a reference to two pop culture points of interest. "sick" refers to the mid charting hit "Down with the Sickness" by Disturbed that broke the Billboard top 20 in 2007. "flex" is an homage to the late Billy Mays due to his relentless pontificating on the water-resistant properties of the made-for-tv product Flex-Seal. In essence, you are both down and sticky, a condition we refer to as "Peter Northed".
You got your hands on a 3070 RTX? Sick flex bro!
by Indexfossil May 6, 2021
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When you eat Starbucks and a seafood boil you become “poop sick”
Corey’s so poop sick right now after drinking Starbucks and eating a seafood boil
by Hairbrush68 May 6, 2023
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Disappearing sickness is for dumbasses who reply once every month and are prone to reply and then dip.
bro1: Ayo muhammad i haven’t heard from u in like forever

muhammads dumbass: yah bro i’m so sick i b disappearing. call that shit disappearing sickness😳
by ayobrowhatsgood November 5, 2019
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A result of doing too much cocaine, causing a hangover and feeling ill.
I cannot make it into work today due to, Powder Sickness.
Dave's attitude changed from, Powder Sickness.
by Krom42 November 15, 2022
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A couple that chooses another's relations to make love work, and in the morning realizing that it was a big mistake!
Last night, sex was creepy. Now I feel like we're a couple of sick fucks!
by Genmyself3 January 20, 2020
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When you go on a date with a girl and you thought it went well and then you try to hangout with her again and she says yes and then bails by using an excuse such as “I feel so sick.” Absolutely clusterfucking your feelings and your night.
I was going to go hangout with Chloe but she got the 2nd Date Sickness while I was on my way to her house.
by funnypanda196 December 28, 2019
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