When a man's pubic hair is so unkempt that it completely engulfs the shaft.
This references the Pokémon "Blaziken", who famously always looks like he has a bush covering his dong.
I had a bad Grindr hookup last night. The motherfucker had a Blaziken Bush. I felt like I was flossing when I was going down on him.
A bush that's so massive that it covers the entire penis. References the Pokemon: Blaziken, who has a bush covering his junk.
"I am never going to see Jerry ever again"
"What? Why? I thought you had a good time?"
"We did, but then I unzipped his pants to have sexy time and all I saw was a Blaziken Bush"