You Better Goo Goo Me!

Slang for "You better not underestimate me!"
This phrase is usually used when someone's skill is underestimated by someone before they try to prove themselves.

Steve: "Bro you're trash at ball, you can't even make a three pointer for crying out loud!"
Dale: "Nah, YOU BETTER GOO GOO ME! Watch this!"
*Dale completely misses the shot*
Steve: You fucking imbecile