Noun
A person who hits on, flirts with, or generally acts interested in someone who is already actively being sought after in a romantic or sexual sense, drawing attention away from the originalinterested party to himself or herself.
I was talking with this hottie at the party when a swooper interrupted our conversation and would not leave him alone for the rest of the evening.
N- Technical term for an observant barfly almost always male. Usually waiting for said females to get very drunk and when the time is right, swoop in and take her home to fuck her brains out.