cast aside vs fling

cast aside

• to discard 

fling

• To throw with violence or quick movement; to hurl. 

• An act of throwing, often violently. 

• A short romantic, oftentimes sexual, relationship. 

• An attempt, a try (as in "give it a fling"). 

• A lively Scottish country dance. 

• An act or period of unrestrained indulgence. 

• An act of moving the limbs or body with violent movements, especially in a dance.