A very great technique for solving math problems. Often only works because they solved it in a different way and used this lemma in a way that gives the same answer as the other way.
(1)A person who blames his teammates for a loss. Usually, but not limited to, the characters choosen by the team or by not supporting him specifically.
(2)A person who does not acknowledge when they are in the wrong. Normally this person will change the subject when presented with compelling evidence to the contrary.
"We lost because you wouldn't be Mercy."
"Wow, this guys a real lemmid."
"Donald Trump is getting more done in his first 100 days than Obama ever did."
"Hasn't he taken like 7 vacations and 12 golf trips?"
"Have you heard any good music lately?"
"Dude, don't be a lemmid."