Similar to the term "Munsoned" from the movie
King Pin, except someone who "McGrathed"
something never had a peak in their lives, just one long, slow slide right into the toilet. Can also apply specifically to complete and utter
financial ineptness.
Maura really McGrathed up her whole life, she makes over $100k a year and steals money from her ex
husband yet her parents have to pay for most of her bills and had to buy her a house for her and her
dingleberry boyfriend.