Fresh Bobber
To obtain a full on erection or a semi induced from a an otherwise non-sexual back rub from your grandma, aunt or cousin. Usually occurs at holiday family gatherings and results in sporting a pup tent and having wait to return to a flaccid state before moving around.
Steven was getting a back rub from his cousin Sarah when they were summoned to the table for dinner. Sarah left immediately but Steven sat around for a few minutes because he needed to rid himself of the Fresh Bobber.