Grandslammed 

When you make yourself cum so good that you need to go to a major restaurant chain and buy yourself breakfast .

Wow .. I needed that ..I totally Grandslammed .. See you in an hour I'm starving .

Grandslammed by Saneand71 June 25, 2016

lumberjack grandslam 

Receiving oral sex and having your mom walk in on you.

As read on Reddit.com

Yo, last night my girlfriend was giving me head, and when my mom walked in, it turned into a lumberjack grandslam!

lumberjack grandslam by foayo December 4, 2013

grandstanding

"Showing off" or going out of one's way to appear spectacular. See showboating.

"After jumping the grand canyon on a unicycle, Harry was grandstanding by cycling backwards with his eyes closed with his underpants on fire."

grandstanding by BigPimpDaddy May 7, 2004

grandson 

Is a word used to call somebody a goat and certified gangsta and will whoop ass in any means and is the leader of any movement and is never a follower. This name is also used for a person that is gangsta and makes sure that the whole team is fed and has what they need. This name was also given to king von in prison when he was locked up. R.i.p king von you will be missed

That boy is a grandson this man whoop 7niggas asses in the same day

grandson by saysfuck.shit December 12, 2020

Grandsladdle 

An alternate term for Grandfather, Grandpa, Grandpop, or Grandad, etc.

"Did you invite Grandsladdle to my birthday party mom?"

Honey we are having dinner with Grandsladdle and Grandmother tonight

Grandsladdle by Kyle Wilson November 7, 2006

Grandson 

A dope band that is underated as fuck

Guy 1: ever heard of grandson?
Guy 2: No

Guy 1: Dude you should check em out their music is like really good

Grandson by Afuckingnerd December 8, 2019

lumberjack grandslam 

The act of one's mother "walking in" while one is receiving oral sex. (Originated from reddit)

Instead of knocking on my room door like she usually did before entering she just opened the door. I don't know what a mothers reaction should be in this type of situation but she started yelling at my girlfriend. When I say yelling I mean I heard her say words that I never heard her say before. She called my girlfriend a whore and said that god would damn us both to hell for our act of sin. My girlfriend at this point is in tears and she's scrambling to get on her clothes and pretty sure she left my house without her bra because she was in such a panic. My mom didn't speak to me for a month after that. She didn't ask me how my day was at school, she didn't speak to me during dinner and she didn't even ask me to go to church on Sunday with her anymore. She used to go every Sunday but I always said no. That's the angriest I have ever seen my mom and we have never spoken about it. When she finally did talk to me she said if I wanted her to ever speak with me again that I had to go to confession and confess my sins. I told her I would go but I ended up going to a Denny's and ordering their Lumberjack grandslam instead. She thinks I went to confession though. Also every time my girlfriend came over after the incident my mom would leave the house. I don't know where she went but she couldn't be in the same vicinity as her. Worst part of it all was my girlfriend didn't attempt to give me another blowjob for a year because she was so scared of my mother walking in on us.

lumberjack grandslam by cittycatroina December 4, 2013