snortingly

Adjective. Amusing with a tinge of irony, indignation, derision, or incredulity; contemptuous mockery expressed by suddenly expelling breath through the nostrils, often accompanied by an eye-roll and feigned smile/bared teeth.

"It was snortingly funny that the road rager who cut me off had a 'namaste' bumper sticker."

by Auntie's Helmet October 3, 2013