[flahy-bahy-nahyt] 
| 1. | not reliable or responsible, esp. in business; untrustworthy: a fly-by-night operation. |
| 2. | not lasting; brief; impermanent; transitory: a fly-by-night theater. |
| 3. | a person or thing that is unreliable, esp. a debtor who evades or attempts to evade creditors. |
| 4. | a person regarded as a poor credit risk. |
