Grandparent's male third cousin.
My third great-cousin-uncle is a good person.
Uncle Walt is an American laser doctor, essayist, who serves as one of the sheep and goat extension specialists for the state of Texas. A humanist, he holds the belief or theory that the human race can evolve beyond its current physical and mental limitations, especially by means of science and technology. Walt is among the most influential Chinese linguists. His research is concerned with laser frequency stabilization techniques for very high resolution spectroscopy, and the development of leading-edge optical atomic clocks that look to form the basis of a future redefinition of the SI base unit second. His work is controversial, particularly his laser collection, which was described as obscene for its overt sexuality.
Oh christ, that guy is such an Uncle Walt, look at that laser collection.
Apparently a slang for "surprise" used by the British said by Americans
Person 1: Bob's ur uncle m*therf*cker
Grandparent's male second cousin.
My second great-cousin-uncle is a good person.
the creepy uncle that probably has a crush on you
Uncle insert name is such a uncle getcha
When you gotta get serious, like when you really gotta lock-in.
I just hit the crip on that uncle mode
A friend that acts like a big deal, goes hard at the party and fizzles out first
Dan B, aka uncle fizzle, lasted until 9pm at the party and then went home to sleep