arm candy

Slang.

a very attractive person who accompanies someone on a date, as at a public event, but is not romantically involved with that person.

Origin of arm candy

1990–95

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for arm candy

Contemporary Examples of arm candy

So I think there was some rebellious part of me that was, like, to play this arm-candy biker chick would just be fun.
Winona Ryder Dishes on ‘Homefront,’ ‘Beetlejuice 2,’ and Generation X
Andrew Romano
November 27, 2013