Top Definition
This means leaving a very generous tip (usually 50-100%) when out drinking and/or dining. Especially when out with a large group of friends.
I'm going to FAT-TIP the bartender so that we will be remembered and taken care of for the rest of the night.
by Pmdmnym July 13, 2015

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When a male has an abnormally large penis tip.
Ian has an extremely fat tip.
by Jimmy Lardbutt March 06, 2014

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One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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