terminal junkie = T = test
terpri /ter'pree/ vi.
[from LISP 1.5 (and later, MacLISP)] To output a newline. Now rare as jargon, though still used as techspeak in Common LISP. It is a contraction of `TERminate PRInt line', named for the fact that, on some early OSes and hardware, no characters would be printed until a complete line was formed, so this operation terminated the line and emitted the output.
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.