No one knows if any dinosaurs have a frill, but you are probably thinking of Dilophosaurus.
NO!
No. Frilled lizards are not dinosaurs, nor is any kind of lizard.
a frill
you scratch it.
no
some times
yes
the frill around its neck
Triceratops were stocky, herbivorous dinosaurs with four legs and a beak. They had a large, bony frill that extended over their neck. It may have been a colorful display in life. They also had a long horn over each eye and a short horn on its nose.
to fight back
Fish fingers and chips