also: どがつく
expression, godan verb (-ku), noun-modifying (irregular)
extremely (something); very much (something)
Used as a set phrase to emphasize that someone or something is an extreme example of a quality, often negative. Attaches to nouns or adjectives, e.g., ドが付くほどの~, ドが付く~.
See also: ド
彼はドが付くほどのお人好しだ。
He is an extremely good-natured person.
あの店はドが付くまずさだった。
That restaurant's food was extremely bad.