lob 
(lŏb)
(lŏb)v. lobbed, lob·bing, lobs
v.tr.
To hit, throw, or propel in a high arc: lob a beach ball; lob a tennis shot over an opponent's head.
v.intr.
1. To hit a ball in a high arc.
2. To move heavily or clumsily.
n.
1. A ball hit, thrown, or propelled in a high arc.
2. Slang A clumsy dull person; a lout.
[Originally, to act like a lout, hang heavily, move clumsily, from lob, lout, something heavy and pendulous, lump, from Middle English lob, pollack, lout; akin to Middle Low German and Middle Dutch lobbe, lubbe, hanging lip, probably ultimately of imitative origin.]
lobber n.