(idea) by Jargon Thu Jul 19 2001 at 4:31:03
beanie key = B = Befunge

beep n.,v.

Syn. feep. This term is techspeak under MS-DOS and OS/2, and seems to be generally preferred among micro hobbyists.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

I like it!