Top definition
A parasite. In Norwegian the word means "hell in anus". Not much is know about this parasite among most people, but the name indicate that it is pain full to have in the anal parts.
Man: I think i have Nematodirus helvetianus, cos my anal parts hurtig like hell. Doctor : nono it is just the good old hemoroids. Man: i just want you to inspect my ass with one of your pianofingers, sir. Is that too much to ask for?

Woman : i would like to have analsex tonight, sir. Man: i have an infection of nematodirus helvetianus on my genitals. Woman : neeeeeext.
by Nematodirus helvetianus June 05, 2015
Get the mug
Get a Nematodirus helvetianus mug for your sister-in-law Yasemin.