lawnmowering 

Putting a full string of anal beads in the ass and yanking them out as hard as possible

Jeffery was lawnmowering his wife and she made race car sounds

lawnmowering by Titan fucker 101 August 7, 2017

Lawnmowering 

When you keep talking after a joke doesn't land or nobody gets a subject, and you keep sputtering nearly nonsensical words until the conversation just dies out. Usually a pretty numbing process.

Dude, stop talking. You're lawnmowering my brain into mush.

Lawnmowering by UrbanCarrion July 25, 2019

Lawnmowing 

When you go down on a girl, the act of your face rubbing against her pubic hair initiates a lawn mower like tendency

Dude I can't believe I was lawnmowing for hours, she better reciprocate

Lawnmowing by TotesDefPresh July 6, 2012