gouge

an impression in a surface (as made by a blow)

and edge tool with a blade like a trough for cutting channels or grooves

the act of gouging

force with the thumb; "gouge out his eyes"

obtain by coercion or intimidation; "They extorted money from the executive by threatening to reveal his past to the company boss"; "They squeezed money from the owner of the business by threatening him"

make a groove in