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1.
The 5 to 10lbs. (and even more in extreme cases) of weight put on while on a luxury cruise with all you can eat buffets, room service and plentiful alcohol.
"Hey man, you're getting fat!"

"It's ok dude, it's just cruise weight."

"Oh, I see."
by natron1588 November 07, 2012
 
2.
The maximum weight a girl can attain and still be attractive to men cruising for tail
Chicks above 120 can no longer be considered "pick-upable" as they have exceeded their maximum cruise weight.
by Cary The B November 09, 2012