wobbler

noun

1. One who or that which wobbles.

2. A stone that rocks from side to side as it travels because it is not resting on its running surface.

3. A case that could go either way depending on factors that cannot be controlled.

4. A class of crime that can be charged as a lower penalty or a higher penalty, e.g. a crime punishable as either a misdemeanor or a felony at the discretion of the prosecutor.

5. A fishing lure made to resemble a prey fish and that wobbles in the water; plug, minnow.

6. A sudden unexpected outburst of anger or rage; a tantrum.

7. A small publicity notice which appears to float at eye level, being attached to a fixture by a flexible arm.

8. The end of the roll in a roller mill for shaping steel.

9. A boiled leg of mutton.