Pronounced like machine, this refers to someone who excessively drinks, smokes, and flirts. A nickname given to Charlie Sheen in his heyday. Example: Albert: Hey I saw Rich smoking a cigar, drinking a Guinness, and talking to this fine lady! Paul: Yeah, he is a ma-sheen.
MA-SHEEN
Meaning of MA-SHEEN in English
Slang English vocab. Английский сленговый словарь. 2012