From an idiomatic command sequence in the qed and ed text editors: āg/re/pā, meaning: globally search for a regular expression and print, The manual action 'grepping' is often used to denote searching for and returning information to another person.
When you skip a tutorial in a video game, and get stuck or lost in something the tutorial taught. A reference to Arin (Egoraptor) of the youtube channel Game Grumps, who would always skip tutorials.
"Bro, you're grumping it! You shouldn't have skipped the tutorial."
"Ah, yeah, I grumped it."
invented for use in gaming. when someone joins your server and their ping is so horrid that it slows everyone else on the server down. most common occurance is in fps games, where lag is literally a life or death variable.