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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

horrendous grendous 

a dog that is extemely angry hateful towards young children.
horrendous grendous by M.Hussy March 1, 2009
Your grenpus is dripping.
grenpus by Blaine Grob December 29, 2013
A type of person who would have a 200 IQ score and is virtually unbeatable with strategy and tactics. If you do beat this type of person you will be respected by this immortal being basicly a demi god.
Dude, I think this guy is a grondus player!

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.
the greatest of the best, most talented of the world, super rare to find, smartest, and most athletic people you will ever meet
wow thats a genduso !
super rare to find a genduso...
genduso by heather white November 17, 2020