wobbler

Definition from Nolo’s Plain-English Law Dictionary

A crime that can be either a misdemeanor (a conviction punishable by a small amount of jail time, typically one year or less) or a felony (a conviction punishable by time in state prison). Wobblers can be charged either way, and depending on the law of their state, judges may have the discretion to reduce a felony conviction in a wobbler case to a misdemeanor.

Definition provided by Nolo’s Plain-English Law Dictionary.