'To have one's fling' definitions:

Definition of 'To have one's fling'

From: GCIDE

Fling \Fling\, n.
1. A cast from the hand; a throw; also, a flounce; a kick; as, the fling of a horse. [1913 Webster]
2. A severe or contemptuous remark; an expression of sarcastic scorn; a gibe; a sarcasm. [1913 Webster]
I, who love to have a fling, Both at senate house and king. --Swift. [1913 Webster]
3. A kind of dance; as, the Highland fling. [1913 Webster]
4. A trifing matter; an object of contempt. [Obs.] [1913 Webster]
England were but a fling Save for the crooked stick and the gray goose wing. --Old Proverb. [1913 Webster]
5. a short period during which one indulges one's wishes, whims, or desires in an unrestrained manner. [PJC]
6. a love affair. [PJC]
7. a casual or brief attempt to accomplish something. [informal]
Syn: shot. [PJC]
8. a period during which one tries a new activity; as, he took a fling at playing tennis. [PJC]
To have one's fling, to enjoy one's self to the full; to have a season of dissipation. --J. H. Newman. "When I was as young as you, I had my fling. I led a life of pleasure." --D. Jerrold. [1913 Webster]