Top definition
A high, snug fitting cylindrical collar on a skivvy ( long sleeve T-shirt ) or sweater.

Worn by women, action heroes and nerds.
1. For the winter fashion show, some models wore poloneck sweaters.

2. The day turned cold, so she pulled on a poloneck.

3. Wincing when she saw the hickey on her neck in the mirror, she thought, " Looks like I'll be needing a poloneck today. "
by Ceea June 19, 2009
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