"Boingy Boof" is a word created by the streamer Vargskelethor or Vinesauce Joel. He uses this word as a nickname for something or someone. It's means "Cute little guy" or "Silly little fella".
Friend 1: "Oh my gosh, there's a spider! Kill it!"
Friend 2: "No! He's just a little Boingy Boof. He's not hurting anyone."
Bolingbroke meaning the intellectual incapacity to understand basic English and the proclivity to smoke away brain cells to drop down to the level of impoverished children capacitating the premises.
noun: A hypothetical Cross-Countryrace that is mentioned to mock a certain XC runner’s jumpy style of running, and most commonly used by runners who despite their mockery are often slower than the mocked one.
Grt: “Shogan, why are you bouncing like that? Are you preparing for the BoingK?”
Shogan: “Hush Grt, you tinychild, I can outrun you while wearing sandals.”