A physically attractive female who looks as if she may belong to a sorority, while at the same time being dressed like a complete slut. A true sorostitute would wear a low-cut halter top and a short, tight skirt in the middle of wintertime. Example: she looks pretty good in that tight shirt and short skirt, but look at the way she's looking at us. Like we're not fit to look at her. Just a snooty sorostitute.
SOROSTITUTE
Meaning of SOROSTITUTE in English
Slang English vocab. Английский сленговый словарь. 2012