The creativity faucet is a mental models for generating ideas.
Imagine your creativity is a backed up water pipe. The first section is clogged with wastewater which must be emptied out before clear water can flow.
You need to get the bad ideas (the wastewater) out before you get to the good ideas (the clear water).
There is no shortcut to this process, you have to let the bad ideas flow out to get to the good ones.