rung

1. The combined smell of feet and butt crack sweat in a hot room or bedroom.

2. Dried urine on the floor, or on the bowl of the toilet that sits after one has missed the bowl.

1. Oh my gosh, it smells like rung in here! Take a shower man.
2. Your room smells like absolute rung man. You need to lay off the Minecraft
3. Someone needs to clean the rung off the toilet!