A sippy is a unlikeable person who never has their own things and always needs to borrow or take things from other people. They will also never do things for other people and only care about their best interests.
Hey, have you seen that new kid?
Yeah, he had to borrow my pencil and book today, he seems a bit of a SIPPY.
a common term used in delaware that means a quickly but also a full send way of netflix and chill. normally involves typically a very overweight man and the male member being bulbous and round like a large sippy cup. can be used as a noun or verb.
me and big man over there had some good sippy fuck two days ago.
dammmmmm, i really wanna sippy fuck that actor on my 600 pound life