A quite funny pick-up line often used by joey from friends when he sees a women he likes.
A hot women walks past Joey
Joey: *sees a women he likes* walks up to her 'How you doin?"
Used to describe something that is sexual or that turns you on.
*A hot women/man walks by*
The person that feels attracted or turned on by him/her would go GIGGITTY GIGGITTY GOO!