A small rounded off piece of excriment that clings on to the hair around the bumhole. Can only be removed with thumb and index finger,thus, creating quite a stink
GIRL: " ooohh, you dirty boy, lick me bumhole too"
LAD: " FUCK!!!! you dirty bitch, not only do you have a hairy arse but its full of Tagnuts"
GIRL: "pick em off for us then"
LAD: " get to fuck, put your Clobber back on and leave quietly before I punch your cunt in"
Sandy Tugnuts is what you call a person who you always see hanging out at the beach, constantly adjusting their junk due to a genital sand flea infestation.
Hey! Take a look at Adam over there with his hand down his speedo. Always scratching on his D and B’s! What a Sandy Tugnuts!!