Fling, chuck (4)
I believe the answer is:
toss
This clue is a double definition.
'fling' is the first definition.
(I know that toss is a more specific form of fling)
'chuck' is the second definition.
(I know that chuck is a more specific form of abandon)
(Other definitions for toss that I've seen before include "Throw (coin) so as to choose" , "Lob" , "Throw carelessly" , "when ship does this?" , "What to do with a pancake and a caber" .)