noun | fil ohr kil awr·der
A fill or kill order is like when you're at the club and you see a hottie across the room, so you tell your wingman "I'm gonna go talk to them, if I strike out, we're leaving immediately" - it's an order type that requires the entire order to be filled immediately or it gets cancelled. It's like a YOLO trade on steroids.
Example
"I placed a fill or kill order for 100 BTC at $50k, thinking I was gonna be the next Winklevoss twin. Turns out, I'm just a regular dumbass who got his order cancelled faster than a celebrity's Twitter apology. Should've just bought DOGE like a normal degenerate."
"Fill or kill orders are like the 'fuck it, we'll do it live' of trading - it's when you're so confident in your trade that you're willing to risk it all on one big move. It's like going all-in on a poker hand with 7-2 offsuit, but instead of losing your rent money, you lose your entire life savings." 