Hair goop

GEL

Sticky styling product that keeps spikes in place until your next shower.

"Hair goop" is a playful, informal way to describe a sticky or thick hair product. The clue uses "goop" to hint at something gel-like, since gel is a common hair-styling product with a gooey texture. It’s a straightforward definition with a bit of humor—no hidden wordplay, just a casual term for something you’d squeeze from a tube. The answer is simply "GEL."