n. The colloquial term used to describe a cute Irish girl from Boston, typically with a very attractive body. It is frequently used in conjunction with 80's-like rhetoric and compliments.
"Dude, that smokin' hottie over there in the BoSox sweatshirt is a total Shermrock. Look at that bodacious bod."
"That chick Kathryn has a Shermrockin' ass."
"That Shermrock over there is a 20. I am going to try some funnylingus on her."