a male fueled by the unbelievable ability to eat, lounge and repulse. a combination of the two words man and container, a true mantainer outeats the competition and attempts to move as little as possible.
ryan was the ultimate mantainer on vacation as he consumed 42 kilos of food, 53 liters of soda/beer and one small child--all without leaving his room.
by jeff_toronto January 7, 2009
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A mixture of the words man and plantain (small banana), it is a word describing a small penis.
I spent last night with him. Sure, he's hot, but he has a mantain!
by DRY0YRD October 27, 2010
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