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A white, viscous liquid adhesive which is waterproof when dry. The most common use is in buildings, to seal spaces (i.e., around windows) that would ordinarily reduce the efficiency of insulation.
Frylock: He - man - what the - you've been eating all my caulk!

Meatwad: Caulk? Nah, this is cheese!

Frylock: No, it's highly toxic industrial adhesive, used to connect electronic circuitry to steel. It's caulk!

Meatwad: And it's good, too!

Frylock: Listen to this, OK? Avoid human contact. May cause dizziness, nausea, and an ability to THINK you can see the future, but you can't!

Meatwad: Well, what does it say about finding oil?

Frylock: Nothing!

Meatwad: Uh oh.
1. Something that goes around windows to keep cold air out

2. Alternate spelling of cock only the coolest of cool can use
1 and 2. That guy did an amazing job at caulking the windows. It made me moist.
caulk by bt February 25, 2003
1. to stop up and make tight against leakage (as a boat or its seams, the cracks in a window frame, or the joints of a pipe)

2. when a guy shoots his load and it runs down between a females breasts or ass crack.
Johnny had to caulk his windows for the winter.

James caulked his horny neigbor Amy's rack and ass.
caulk by cardinal_fan October 19, 2004
Caulk; A funny word that has the same pronunciation as the male genitalia, however instead of the off-putting, expected meaning, it is merely a form of plaster used for house and bathroom repair.

(note: Amazing for joking with friends! Example as follows;)
*Man one*: "Hey Non-disclosed friend, wanna see a picture of my caulk?"
*Man two*: "Hell no Equally non-disclosed friend! That is very disgusting and inappropriate!"
*Man one*: *shows picture of completely innocent repair tool known as "Caulk"*
*also Man one*: "See? This is my completely innocent repair tool known as 'Caulk'"
*Man two*: "Ha Ha Ha, This is very humorous. Thank you for showing me this example of great humor my good Non-disclosed friend"
Caulk by Caulk Man February 15, 2022
a term used to subliminally signify a dick when making a prank call.
Hello sir, does this store supply caulk?

Does the caulk come in different colors?
caulk by rick james bitch February 27, 2004
The process of pulling out and ejaculating on the woman's inner-thighs, tying them together, and leaving her to stick and dry in the bathtub for 4-5 hours.
Her thighs were completely stuck this morning after we caulked last night.
caulk by Cortizone April 22, 2008