Definition of "caulk" [caulk]

• To make watertight or airtight by filling or sealing: caulk a pipe joint; caulked the cracks between the boards with mud. (verb-transitive)
• Nautical To make (a boat) watertight by packing seams with a waterproof material, such as oakum or pitch. (verb-transitive)
• To apply caulking: caulked all around the window frame. (verb-intransitive)
• Caulking. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "During the day, there are no bars or clubs for the bitch brigade to get thrown out of, so much of last night's season 3 premiere focused on the conflict and "caulk" - friendly resolution of Amber #2's producer-encouraged "decision" to smash a window."
• "Hot dogs are barbecued Egyptian beef sausages called -- and these cookies called caulk (ph)."
• "Once you've identified the spots that need caulking, be sure to pick the right kind of caulk for the job."