Haw-haw n. : See Ha-ha.

Example:
Do you remember the first time you saw a who who or a haw haw?

Taxonomy
Lord Haw-Haw, broadcasts, Lord Haw Haw, announcers, 1939, German broadcaster, broadcasters, British, free encyclopedia, William Joyce, listeners, nickname, Lord, German radio, German, propaganda broadcasts, propaganda, history.

Defination from the web:
Haw-Haw was the nickname of several announcers on the English language propaganda radio program Germany Calling, broadcast by Nazi German ... Summary and MP3 Audio of an April 1945 broadcast excerpt by Lord Haw-Haw, from an Imperial War Museum website ...