Rabbit season!Explanation While there have been examples prior to its use in Rabbit Fire, this version of the exchange is probably the most popular and well-known version in animation history, epitomising the characters involved.
Bugs BunnyCuts Florida Loose. "South America, take it away!"Explanation In "Rebel Rabbit", Bugs tries to prove rabbits are vicious creatures by doing many crimes against humanity, one of which is cutting the state of Florida loose. This scene has become memetic in response to some peoples' hatred of Florida for various events in recent memory.
"Fortunately I keep my feathers numbered for just such an emergency." Explanation Foghorn Leghorn frequently..."I say", frequently finds himself stripped of his feathers as a result of whatever prank he just attempted on (or was played on him by) the Barnyard Dog or Henery Hawk; "'attempted', that is".
"I am scared, I'm terrified." Explanation A scene from "Hold the Lion Please" where after Bugs realizes he's facing a ferocious lion, he says this while making wird reaction faces. Said faces are frequently used on 4chan as "lol what" or "hell no" expressions.
Other examples were originally references to popular radio shows of the time, including, but by no means limited to:
"I'm only 3 1/2 years old!"
"He don't know me very well, do he?"
"Cu...camonga"Explanation A reference to Jack Benny's radio (and later TV) show in which an announcer at a train station (also voiced by Mel Blanc, which also makes it an inside reference) would announce a departure "for Anaheim, Azusa, and Cu...camonga!"; directly referenced in at least one short with Porky Pig and Daffy Duck.