I Knew You'd Trade in 300
A shout you make when someone is too stupid to stay on your side. It’s from the movie 300, where a guy got so angry he flipped sides and got stabbed a lot.
'I knew you'd trade in 300' when my friend told my crush I was ugly.
'I knew you'd trade in 300' after my brother took my video game and played it for hours.
'I knew you'd trade in 300' when my dog ate my homework and my dad believed him.