crash
v.
late 14c., crasschen "break in pieces;" probably imitative. Meaning "break into a party, etc." is 1922. Slang meaning "to sleep" dates from 1943; especially from 1965. Computing sense is from 1973. Related: Crashed; crashing.
n.
1570s, from crash, v.; sense of "financial collapse" is from 1817, "collision" is from 1910; references to falling of airplanes are from World War I.