A senile old man or woman who has forgotten how to drive and is allowed far too many priveledges just for living through this hell we call life regardless of all their retirement benefits and 401k plans.
1. Dude, that senior in the Buick almost ran over my kid.
2. Old man: Can I have the senior discount?
Today's wayward youth: You just got a social security check for $300,000! Why should you get a discount?
Old man: Because I'm old.
Today's wayward youth: Go to hell!
1) A slut. One of the biggest whores you have encountered in your life thus far
2) The last year of high school, when all hell breaks loose and morals are no longer an issue (at least until you start college)
1) Oh my god! Kim is such a senior. Cutie & her totally sucked each other up last night. And this morning. And OH MY GOD, LOOK OUTSIDE! THEY'RE DOING IT RIGHT NOW ON YOUR LAWN!