The phrase "vice grip" refers to a type of very strong and tight grip or clasp. It can describe holding onto something tightly, often to restrict movement or apply pressure. Full definition
I used vice grips to make a bending - pivot - point on the hand grip and length of pipe to go over the lever for leverage. (mechanics.stackexchange.com)
Many car buyers have short memories when it comes to fuel costs, and the current vice grip that crossovers have on the market is proof. (nydailynews.com)
The aluminium clamp tightens with ease to a super strong and safe vice grip on the table or benchtop. (littleangels.ie)