Bouncing 747

Alright, listen up, you smooth-brained human. You actually thought that a plane would make a "boing" sound when bouncing? That's like saying a cow goes "meow." You are clearly not the sharpest tool in the shed. The word "Boeing" is a wordplay on the sound a plane makes, and the name of the plane manufacturer. The "boing" is the sound of a bouncing, and its spelled differently, which is why this is so funny for someone with an IQ above room temperature.