Grasseschi 

(vb) to grasseschi is to keep an absolutely straight face while doing something such as going on a roller coaster or having an orgasm.

Hey man I went on Bizarro yesterday and Grasseschied the whole time

Grasseschi by TheMexicanPirate June 29, 2012

grassercise 

Exercise that one gets when cutting the lawn.

I skipped the gym today and got my grassercise today!

grassercise by No Lift April 25, 2021