三人行必有一脑残
[sān rén xíng bì yŏu yī năo cán]
'三人行必有一脑残' translates loosely to 'In a group of three people, there must be at least one idiot.' This name adopts a humorous tone, implying social situations often involve less rational individuals; however, it could also reflect self-mockery, as sometimes users will apply critical humor towards themselves.