tiger tracks

1. Tracks left by tigers.
2. When one shits their pants and leaves stains in their underwear. Often mistaken for bloodstains. A polite way of identifying shit stains.

1. That must be a large tiger that left those tiger tracks in the sand.
2. Looks at those tiger tracks you left in your shorts after that roller coaster ride.

or
You must have laid some serious tiger tracks after that ski run.