A phrase usually meaning "that's so typical of you", but could be used to trick others or counter-trick them, and are good for coming back at "screw you", "I'm going to ... ", or "I swear these people...".
Person A: "I freaking flunked that math test."
You: "Because you're an idiot infested with attention issues."
Person A: "Screw you, dude."
You: "You would. Dude."
Person B: "I'm going to go to the mall with my friends, and maybe even get some action with my boyfriend. ;)"
You: "You would."
Ex. 3 -
Person C: "I hate people who just judge others just by a one-time chance and hypocrites. Like that new girl Judy, she just went out and snapped at my best friend and never got to know her."
You: *sighs* "You would."