In gaming, playing a game that you already have experience with from a new account, often making very quick progression and intimidating opponents (not to be confused with hacking)
Brok3nHe4rts: that guy is so good for level 3
Xx_RampageDestroyer69_xX: he must be hacking ItzAltraz: seems like you guys haven't heard about smurfing
In gaming culture, smurfing is defined as logging into a secret account seperate from a main account as to allow the user to play a game without being detected by his or her peers.
Generally the purpose of smurfing is to improve oneself without compromising the statistics of a main account. It allows gamers to try new strategies, or simply play without worrying about a "record".
A person in the higher ranks of a game, usually a team based dps game like overwatch or csgo, who purposly makes a new account or purposly drops down to the lower ranks just to destroy the noobies.
Some dude playing overwatch: Why is this McCree so good?
Guy who is smurfing: Between you and me, I'm smurfing down here on bronze, I'm actually 500.
dropping a deuce, popping a squat, dropping the kids off at the pool, making a deposit at the first porcelain bank. you get the point
Dude, quit beating on the door, I'm smurfing a turd!
-or-
Papa Smurf: "We'll stop smurfing turds in your lake..."
Leader of the Snorks: "And we'll allow you to take pictures of our women."
Papa Smurf: "... for masturbation."
Leader of the Snorks: "Yes, for masturbation."