Fat crush 

When you have a huge crush on someone

You have a fat crush on her

Fat crush by funnycar56 June 17, 2019

Fat crush 

Something soul crushing you get when you have liked someone you have no chance with for far too long even though that person is unavailable or uninterested

Guy 1: Damn I got a fat crush on Jasmine
Guy 2: That must suck

Fat crush by some.random.simp January 7, 2021