(noun) Catch-all derogatory expression meaning ridiculous, lame, lucky, or a fluke. Most often used in exasperation by the party who has just been defeated or screwed over by a longshot, lucky bounce, or otherwise flukey play.
Maaaannnn, I can't believe you made that lucky shot. That is just so scrotismal.
Scroteus (n.) {skroh-tee-uhs, tyoos}:
1. Classical Mythology. A lesser mangod of courageonicity and bravitude, son of Testiclees, The Greek God of Nards.
2. A person of exceptionally scrotal constitution usually exemplified by an act of fantastical ballsiness.
3. (lowercase) Cosmotology. The blue liquid in which combs are kept.
pl. scrotei {skroh-tee-ahy}
This is the dawning of the Age of Scroteus, AGE OF SCROTEUUUUUSSS! Scro-teeee-uuuuuuus!