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To have sex and get pregnant and then have an abortion.

Could also mean after deciding you don't want to have sex with someone last second you abort having sex with them at all.
Cindy messed up by not wearing a condom with her boyfriend and got pregnant. After deciding having a kid would be stupid at 18 she went to the clinic and got a smooshbortion.

Tami wanted to smoosh her boyfriend but after he said I love you after one week of dating she realized she wanted a smooshbortion.
by eelizabeth84 January 20, 2011
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