Tennis. a ball hit in a high arc to the back of the opponent's court.
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Cricket. a ball bowled with a slow underhand motion.
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BritishDialect. a slow, heavy, dull-witted person.
Origin: 1325–75; in earlier sense, to behave like a lob (Middle English lobbe, lob bumpkin, clumsy person, orig. pollack; Old English: spider; basic sense, something pendulous); cognate with Middle Low German, Middle Dutch lobbe dangling part, stockfish, etc.
[C14: probably of Low German origin, originally in the sense: something dangling; compare Middle Low German lobbe hanging lower lip, Old English loppe spider]
"send up in a slow, high arc," 1824 (implied in lobbing), but the word existed 16c. in various senses suggesting "heavy, pendant, or floppy things," and is probably ult. from an unrecorded O.E. word; cf. E.Fris. lobbe "hanging lump of flesh," Du. lob "hanging lip, ruffle, hanging sleeve," Dan. lobbes