1. n. a baby with a dirty diaper. (Also a term of address.) Come here, you little stinkpot. I’ll fix you.
2. n. anything smelly. Why don’t you drive this stinkpot into a service station and get it tuned?
3. n. a motorboat. (Because the engine smells bad, especially when compared to a sailboat.) Those guys in their stinkpots sure make a lot of noise.