Stammering 

To act foolish and jumble your words and actions around a totally hot and stunning girl. Instead of impressing her you most likely convey yourself as a dork.

I went to talk to K-girl with a well thought plan of attack, but made a dork of myself when I started stammering. What a mess.

Stammering by Nightraider December 9, 2007

Spamming 

Spamming, in the context of video games, refers to the repeated use of the same item or action. For example, "grenade spamming" is the act of a player throwing a large number of grenades in succession into an area

This nigga c murder can't win a fight on MK unless he spam the fuck out of his favorite move. he loves spamming!!

Spamming by Iolukonu117 May 16, 2016

Video Spamming 

When people post videos for a word on Urban Dictionary that has absolutely nothing to do with the word or phrase.

Urban Dictionary's new add video function has produced a lot of video spamming.

Eddy: Son of a bitch! I'm getting tired of seeing those same vids for every word I look up.

Video Spamming by Dancing with Fire August 27, 2011

urban dictionary spamming (UDS) 

When one decides to enter more than one definition into urban dictionary without the word being a necessary addition.

Mike: Oh My God! I just added 17 words today to urban dictionary, my favourite was 'potato'
Steve: potato 'schamato', i hate urban dictionary spamming (UDS)

urban dictionary spamming (UDS) by Benjo. November 1, 2006

Shammering 

More than mostest

I love you mostest, well I love you shammering

Shammering by Coolest word maker X July 19, 2016

Spamming Jams

You spam jams when you send all your Facebook friends the same youtube video of a new awesome song you found. Or when you're trying to flex your music knowledge.

Man I could spam jams for hours, got so much music to show this chick.

I've been spamming jams for hours, can't stop finding new shit!

Spamming Jams by jamspammer August 26, 2013

Troll spamming 

When a couple of boys hop in in a pickup and grab your shovels, queso cheese, unborn fetus, paint, and a few other things and troll spam.

Hey jack want to go troll spamming I'll bring the unborn fetus

Troll spamming by Trollspam2019 April 5, 2019