Word Origin & History
lob"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
"clown, bumpkin."