Green’s Dictionary of Slang

lob v.

[16C–18C SE]

1. [early 19C] to droop, to allow to hang heavily.

2. [1910s] (Aus.) to fail.

3. see lob in

In phrases

lob in (v.) (also lob, lob along, lob up) [SE lob, to move heavily or clumsily]

1. [late 19C+] (Aus.) to arrive, to turn up, (of a race horse) to win; thus lobber, one who turns up; lob around, wait around.

2. [1920s] (Aus.) to hit, to assault.

3. [20C+] to commence having sexual intercourse.

lob off (v.) [SE lob, to move heavily or clumsily]

[1910s] (Aus.) to go away.

lob onto (v.) [? SE lob, to throw, usu. clumsily] [1910s+] (Aus.)

1. to get hold of or find out through a stroke of luck.

2. to associate oneself with.

lob out (v.) [SE lob, to throw, usu. clumsily]

[1940s+] to hand out.