An insult used to declare that a person has done something homosexual or displeasing. The term orginated in the Commonwealth of the Bahamas. The term litterally would mean "You Like Men" however in bahamian slang "Men" is typically substituted for "Man." It is not strictly used to declare that a person is Gay or has done something homosexual, on the contrary it can be used when the user feels that a person has done or is doing something unpleasing, upsetting or even disrespectful or wrong.
'Man like' is often used as a sort of exclamation upon greeting someone to re-affirm who that person. It can also be used to boost ones ego (including yourself)