What is Idclip?
1.
Pronounced: I-D-Clip
n. Cheat to turn clipping mode on and off in DOOM II.
In ID software's first DOOM game, the cheat code to walk through walls (or no clipping mode) was IDSPISPOPD (it was an ID inside joke). In the second in the DOOM series, they changed the clipping mode cheat to IDCLIP, presumably to make the cheat easier to type in.
A: How do you walk through walls?
B: IDCLIP.
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