“Kacke” means crap or shit in German, but the colloquial form is “Kack”, as in “So ein Kack!” (“Such a crap!”), so that’s one letter away from pack or tack.
“Node” is Hebrew for fart.
Not a curse word, just a bit eyebrow-raising: I remember us 11-year-olds giggling when English class introduced the word ‘kitchen’ (Kittchen is colloquial German for ‘prison’).
According to Top Gear, the Albanian word for penis is pronounced “car”, and their word for vagina sounds like “peach”. Therefore, saying “This car’s a peach” would be a big no no.