v. being pregnant with twins, usuallly used in a slightly perjorative sense by singleton-housers.
That Natalie! She is all about the twinsing these days. I could have double-downed too but my girls and I don't have to sing no multiverse song.
by gnostic! April 9, 2011
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When you are trying to twin with your teacher bestie but teacher bestie hates you(but secretly loves you)
"Me and Mr Hall are TWINSING"
"He looks mad"
"It's just cause he's so happy!"
by Ahmawyllt April 29, 2022
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