brick up

verb5

1. •
   To block or cover using bricks.

   • I am going to brick up the window instead of replacing the glass.
   • The tunnel's mouth was bricked up because it was unsafe.
2. •
   To trap or seal in a closed space using bricks.

   • The chest was bricked up into the wall.
3. •
   (Internet) To cause (someone) to have an erection.

   • She’s got a little meat along her lats and femur muscles that bricks me up more. — 2023
4. •
   (informal) To become constipated.
5. •
   To build a supporting structure out of brick in order to form the containing walls of a mould.