Unwanted Visitor
:an unwanted erection, often occurring at random during the worse time possible for example as your giving a presentation in front of class or as you wait inline for a rollercoaster.
Thomas: Hey man can you go refil the soda?
Jim: I'd love to but I have an unwanted visitor.
Thomas: oh (gets refil)
Jim: I'd love to but I have an unwanted visitor.
Thomas: oh (gets refil)