She wiped at her nose and she winked

From Theholdsteady

Wiping at one's nose is probably drug reference, as many cocaine users are known to have chronically runny noses. It could also be a reference to the gesture described here, famously used in the movie The Sting to indicate a shared reference, similar to the use of the wink.

from Don't Let Me Explode and 212-Margarita