Top Definition
A person who is negative or a killjoy. A person whose every action seems to be a buzzkill, as if they literally suck the happy out of others.
Her job was a real downer because her co-workers were all happysucks.
by Leastie July 02, 2013

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.