"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 probably is ultimately from an unrecorded Old English word; cf. East Frisian lobbe "hanging lump of flesh," Dutch lob "hanging lip, ruffle, hanging sleeve," Danish lobbes "clown, bumpkin." Related: Lobbed; lobbing. The noun in this sense is from 1875, from the verb.