Butt
–noun 1. the end or extremity of anything, esp. the thicker, larger, or blunt end considered as a bottom, base, support, or handle, as of a log, fishing rod, or pistol.
2. an end that is not used or consumed; remnant: a cigar butt.
3. a lean cut of pork shoulder.
4. Slang. the buttocks.
5. Slang. a cigarette.
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[Origin: 1400–50; late ME bott (thick) end, buttock, OE butt tree stump (in place names); akin to Sw but stump, Dan but stubby; cf. buttock]