Scurrr!
A callout, indicating a high testosterone level
A: Dude, you wanna do some benchpressing?
B: Scurrr!
B: Scurrr!
scurrr
The sound one makes when one observes something boo boo.
I was driving downtown the other day when I saw a chick with three tits. I immediately slammed on the breaks and simultaneously yelled "scurrr".