When one has really clogged up sinuses and cannot focus on work and finds everything rather amusing.
"Julia and Sofia, pay attention to your math!" Anthony
"Sorry, Anthony. I just am having a sinus high right now. My nose is like a snot volcano." Julia
"Sorry, Anthony. I just am having a sinus high right now. My nose is like a snot volcano." Julia
by Julia O. December 3, 2006
Get the sinus highmug.