f shot - when you're too poor to buy a real shot, so you use a ketchu

when you're too poor to buy a real shot, so you use a ketchup cup and pretend it's a shot, even though it's just your favorite drink

I used my ketchup cup for a f shot, and it tasted like regret

My friend used a ketchup cup for a f shot, and now he's in the hospital

I filled my ketchup cup with soda, it's a f shot and I'm the king