Erectile Disfunction
Looked into this one when it appeared as a random world and I assumed it was in need of the explicit tag. Regardless of the name, the actual game has nothing to do with ED and is (fairly) tame.
What it's actually about is escaping from an abusive home. You have to sneak around the family house grabbing items that may be useful to run away forever. Each board has a time limit, a locked door or two, and a number of objects that can be inspected. Running out of time means being caught sneaking out, though it's also possible to game over immediately if you do something that makes too much noise.
The game logic isn't the greatest. Moving one kitchen chair will reveal flashlight batteries (torches) while the next will cause you to make too much noise and instantly wake your abusive father.
With the ever present threat of running out of time, the game is very frantic. You'll have to find a route on the fly and discover some hidden keys by shooting objects. Dark boards prevent you from seeing the timer at all times adding some tension to those rooms. It's enjoyable, though the undertones of your home life make failure feel quite heavy.
After a few interior boards, there's still some more game when you get outside. The game changes from being about collecting things to shooting hostile stray dogs (tigers).
There are a lot of bugs despite the short length of the game. Some objects will let you perform actions that involve using different item without you collecting that item. One object that gave ammo and torches allows you to collect them indefinitely.
The menu has a "High Scores" section which is actually a password prompt (passwords are received after finishing each board) that give you extra health, but does not change the starting screen.
Not half bad for a few minutes of play. If you're looking for a more serious ZZT game about dealing with an abusive family, check out Growing Up. If you're looking for a ZZT game actually about erectile dysfunction, you'll have to keep looking.