caulk

noun
A pointed projection on a horseshoe to prevent it slipping.A spike on the sole of a boot to prevent slipping, particularly used in logging

noun
Caulking.A composition of vehicle and pigment used at ambient temperatures for filling/sealing joints or junctures, that remains elastic for an extended period of time after application.

verb
To drive oakum into the seams of a ship's wooden deck or hull to make it watertight.To apply caulking to joints, cracks, or a juncture of different materials.Fuck