memory smash = M = mess-dos

menuitis /men`yoo-i:'tis/ n.

Notional disease suffered by software with an obsessively simple-minded menu interface and no escape. Hackers find this intensely irritating and much prefer the flexibility of command-line or language-style interfaces, especially those customizable via macros or a special-purpose language in which one can encode useful hacks. See user-obsequious, drool-proof paper, WIMP environment, for the rest of us.

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