A human being, male, female OR of another gender who is 65 years or older.
Your grandparents are probably senior citizens
the text on your dad's mug if your dad has a boring profession
My dad is the best senior engineer in the world! so that's why my dad is boring.
That one girl who only goes for seniors. Or the one guy on the football team that the seniors fuck with
Dude you’re such a senior bunny
Any Chinook salmon over 21lbs.
Me: "Hey Dave, how big do you think that fish is"
Dave Senior: "35 pounds!"
Me: *Puts it on the scale* "Wow 22 pounds"
David Summers: "A Dave Senior Tyee"
Seniors are considered those 65 and older but younger seniors don't identify as "seniors" given the demographic has such a wide span - from 65-100+.
I'm not ready to move to a retirement community. I'm a "junior" senior.