Smelldentify

The act of smelling an item of clothing in order to determine who it belongs owing to people's individual scents.

Person 1: Hey! We're wearing the same top!
*the tops are thrown on the floor and get mixed up*
Person 2: Who's is who's?!
Person 1: It's fine, we can smelldentify them. *Sniffs a shirt* this is yours.