Moobs are fatty deposits on a male's chest, which mimic female mammary glands. Moobs is derived from a shortened (combined) version of the term 'man boobs'. Commonly thought to be the result of the eating habits of fat hungry cnuts; however, some modern practictioners suggest that moobs have become commonplace due to the high exposure of the population to estrogen in modern living due to foods, pesticides and plastics. Moobs are generally considered unattractive, however, there are some members of society who are turned on by these hairy fun bags.
I'm almost finished with Robert Ludlum's novel THE ICARUS AGENDA, which has two slang phrases in it that have me scratching my head (a lot). "A two toilet Irish detective" is supposed to be American Boston-Irish slang, and I guess isn't too hard to figure out. I still wanna know!