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."
Swertainly is a modified form of the common word "certainly." It is most often used to affirm a statement someone just made. Swertainly is also used on the streets as a more endearing term of acknowledgment. When used on the streets, the phrase "my dear" is frequently added on to the end, creating: "Swertainly, my dear."
Bethany: You want to settle this in a game of ping-pong, before I kick your ass?
Mark: Swertainly, my dear.