1) The boy butted into the girl.
2) It is impolite to butt into other people's conversation.
3) Don't butt into other people's business.
4) She threw the cigarette butt into the ashtray.
5) Don't butt into people's business.
6) Don't butt into their business!
7) He dropped his cigarette butt into the street below.
8) Now get the butt into your butt rest.
9) You notice one of them flick a cigarette butt into the bins.
10) Actively press leg and butt into the floor,(http://sentencedict.com/butt into.html) don't let them ride up.
11) He nodded his thanks as he took it and flipped another cigarette butt into the toilet.
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