(skateboarding, snowboard, BMX) A trick where the rider makes the bottom of the board touch the side of a wall.

Any interface through which there is no transfer of heat or entropy

(medicine) The set of tissues that bound the thoracic cavity, including the rib cage, fascia, muscles etc.

(informal, humorous) a power supply which plugs directly to the mains socket, without an intervening cord, and via a cord connects to power the device it is used for

plural of power wall

A person who participated in bringing down the Berlin Wall in November 1989.

plural of wall-pecker

simple past tense and past participle of climb the walls

Third-person singular simple present indicative form of climb the walls

A popular music production technique, developed in the 1960s, in which a number of musicians perform the same instruments or parts in unison and the resulting sound is re-recorded in an echo chamber.