MLG stands for 'major league gaming' and is the sport incels are often the best at.
'DarthDVA' from yourenotalone.co summed up MLG thusly:
“”the mlg will be the foundation of society. And society will be the foundation of MLG.
imagine being a femboy, going home in your cool futuristic car. Sittin down on your gaming chair rekking scrubs. Then getting on demand pussy whenver u need sex.
society will be legit
doritos will be eaten
mountain dew will be drankenno male would have lo self esteem