FLAKY
flaky
Adjective
- Consisting of flakes or of small, loose masses; lying, or cleaving off, in flakes or layers; flakelike.
- Unreliable; prone to make plans with others but then abandon those plans.- Some of his friends were flaky.
 
- Unreliable; working only on an intermittent basis; prone to cease functioning properly.- I cannot enjoy the online game because of my flaky Internet connection.
 
The above text is a snippet from Wiktionary: flaky
and as such is available under the Creative Commons Attribution/Share-Alike License.