(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.
"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."
Someone who is extremely salty when playing team based games. It is always someone else's fault when the team does poorly or loses, it's never his/her fault.