Gerundus 

Staring contest

He's got a Gerundus going.

Gerundus by MrDann April 22, 2011

Gerundus 

Code name for smoking marijuana

yo u wanna gerundus later?

Gerundus by MrDan December 2, 2003

Grundus 

Area between a mans bellybutton and phallus, commonly known to cause pleasure when rubbed.

Michael has never had his grundus rubbed by a woman.

Grundus by SneakyTurtle69 July 10, 2022

Grundus Majoris 

Anatomically correct term for pelvic floor when being worked on by a physical therapist or massage technicican. May be used to describe any area close to your naughty bits that may need attention, treatment, or MFR myo-facial-release

I think we've covered a lot of ground here today Bob. Keep up with the excercises we discussed earlier and remember to be conscious of your lumbar-sacral allignment as well as your Grundus Majoris.

Grundus Majoris by Westernmedicineis 30yrs behind May 30, 2018