a.excessive tease, usually leaving devastating effects
b. terrible swim lessons instructor
1. The Bears just lost the Super Bowl, man that season was such a k80!
2. I thought that this relationship was going somewhere, but that girl was such a k80 and broke my heart!
3. I thought the Eagles would upset the undefeated Patriots, but all they did was pull a huge k80.
4. OMG, you're such a k80, you've let 3 kids drown this session!!!