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Variation of the British phrase 'Bottoms Up',

which literally encourages the listener to raise the bottom of their glass towards the ceiling and let the content glide down their throat.

Most commonly used when the glass' content is alcoholic, which was also the case when the expression was created by a German fresher adjusting to British drinking standards.
-Down it!
-Raise your Bottoms!
by YYYork January 30, 2012
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