Nosecloud
Noseclouding is the act of being snooty. The term refers to the position of ones nose (in the clouds) whilst in the act.
A: "I only drive the finest BMW 3-series, the one with the premium package"
B: "Dude, stop noseclouding, you're not a big deal"
B: "Dude, stop noseclouding, you're not a big deal"