The feeling of urgency a speaker of the language Scunt gets when they see a skunker, or a follower of Travis Skunk.
Scark mode can be compared to the phrase "ape shit." When one goes into scark mode they will begin reeking havoc on every single skunker within a 5 mile radius, thus shrinking their genitals even more.
I SWEAR TO GOD GET THIS FUCKING SKUNKER OUT OF MY FACE OR IMA GO SCARK MODE ALL ON EM!!!
If I have to go scark mode one more time today I'm gonna turn into Travis Scark himself.