On an adult female, pubic hair of such volume and depth that Self-Contained Underwater Breathing Appartus (SCUBA) equipment would be required to safely perform oral sex upon them.
Dude A: "I scrogged J's step-mom last night."
Dude B: "No way! The new one or the old one?"
Dude A: "Let's put it this way, the one with the Zumba ass."
Dude B: "She any good in the sack?"
Dude A: "Yeah, for the most part. She's got a great body and takes it up the ass like no tomorrow, but she's also got some pretty scary scubic hair and loves to smother you with it."