When your Step-Grandpa has an affair with your biological aunty, then marries her. Technically not insest, but still immoral.
He used to be my Grandpa by marriage (step) but had an affair with my aunty, so grandma kicked him out and he married aunty. He used to be grandpa, but now he is my uncle ... my uncle grandpa
by anon-nz August 10, 2019
Get the Uncle Grandpamug. Grandpa hour tends to be the last hour of the day and affects men's cognitive and physical abilities. In summary, it is when men truly feel their age (and in many cases feel even older). Typically Grandpa hour sets in at around 30 years old but has been known to affect men as young as 25.
* Three thirty-somethings playing an online first person shooter against much better, young opposition
Michael - Where should we head to next?
Mark - How about this area?
Tom - Shit! There's players on the map!
Michael - Tag them Tom! Fucking tag! Where?!?? The map is huge!
Mark - Of course there's players you twat! There's 150 of us!
Michael - Ah hold up. It's 10pm. It's Grandpa hour. He can no longer do words. In fact, we're all fucked now.
Michael - Where should we head to next?
Mark - How about this area?
Tom - Shit! There's players on the map!
Michael - Tag them Tom! Fucking tag! Where?!?? The map is huge!
Mark - Of course there's players you twat! There's 150 of us!
Michael - Ah hold up. It's 10pm. It's Grandpa hour. He can no longer do words. In fact, we're all fucked now.
by MrTeacherMan August 13, 2020
Get the Grandpa hourmug. 
Get the grandpamug. Fuckface grandpa is used to define an old person, not so good looking who hits on young, pretty women
Girl to her friends: I met a real fuckface grandpa at work! He wanted me to show him how to get to the 15th floor in my office!
by tuffy08 May 7, 2014
Get the Fuckface Grandpamug. Lincoln pressed the jump button when he meant to press dodge, costing his team the win.
He's been doin it all game.
Freddy has a case of the grandpa hands.
James kept dropping the wrench, even tho he didn't have to hold it weird, and the job was really straightforward.
James has grandpa hands.
He's been doin it all game.
Freddy has a case of the grandpa hands.
James kept dropping the wrench, even tho he didn't have to hold it weird, and the job was really straightforward.
James has grandpa hands.
by jaebbles May 2, 2023
Get the grandpa handsmug. A cunning yet somewhat skill procedure that involves a lady (i.e. a dirty whore ) to gently stick her finger up an older mans ass, whilst performing fellatio.
" i picked up this young chic at the bar last night" and? " She gave me a blowjob and topped that off with a grandpa's toolbox
by 427big cat November 9, 2018
Get the grandpa's toolboxmug. Often referred to as NTJ (Naked towel Jason), Grandpa J, Papa Johns, J Pops, Towel Jason, and J man. He is someone who carries a towel 24/7 and believes beddings such as a pillow and blanket is overrated. He sleeps with little or no clothing. He LOVES to sing opera in the bathroom, especially La Donna È Mobile. From the outside he looks like a bamboo stick, however, he is even more of a bamboo stick on the inside. He has an AMAZING jawline, it gives everyone a paper cut just by looking at it. His iconic style often includes a casual button up shirt (the top button must be buttoned up), khaki pants, and thick converse.
"Wanna go g it with the world's best best grandpa!!!?" - Wise friend
"He probably is a naked towel" - Wise friend
"Japanese, just very Japanese" - Other wise friend
"Laughs like a monkay" - Other wise friend
"He is a very nice person, I personally would sacrifice myself for him" - Another wise person
"He probably is a naked towel" - Wise friend
"Japanese, just very Japanese" - Other wise friend
"Laughs like a monkay" - Other wise friend
"He is a very nice person, I personally would sacrifice myself for him" - Another wise person
by Universally Handsome Man July 20, 2022
Get the WORLD'S BEST BEST GRANDPA!!!mug.