What does boosted mean in LoL?

What is ELO boosting in League of Legends? - Quora

Pro League of Legends players suspended for 'Elo-Boosting' - Polygon

Win Trading and Boosters : r/RocketLeague

Just hit emerald. I'm hardstuck plat for years and this doesn't give any satisfaction. : r/Jungle_Mains

The Rainmaker: a look at Apdo and the world of ELO boosting : r/leagueoflegends

NACL/Collegiate/Streamer players in Famous Chinese Boosting Discord (Video Proof in Thread) : r/leagueoflegends

Why do so many people want to get boosted, even in very low elo like iron? : r/VALORANT

The meme is that this guy has done this for 83 games, and hasn't been banned. : r/LeagueOfMemes

Smurfers aren't that stupid. The smurfs: : r/LeagueOfMemes

LoL: O que é “Elo Job” e “Elo Boost”, práticas proibidas pela Riot Games