Ripping
来自Big Physics
late Middle English (as a verb): of unknown origin; compare with the verb reap. The noun dates from the early 18th century.
etymonline
ripping (adj.)
1714, "cutting," present-participle adjective from rip (v.). Slang meaning "very fast, rapid" (probably now obsolete) is from 1826; hence the further slang development "excellent, splendid" (1846), marked in OED (1989) as "Now somewhat arch." Related: Rippingly.
