To be jumpy or anxious to do something. Most commonly it refers to situations involving fighting or violence, but it can also refer to any situation involving someone anxiously wanting to do something.
Johnny was feeling froggy, so he drove to the city to find something to do.
Tyrone was feeling froggy, so he jacked Jamal in his ugly face.
French-Canadian tourists ( see "snowbirds") that flock to the Fort Lauderdale/Hollywood FL area to winter every year. Characterized by profound rudeness and a penchant for driving no more than 30 mph in the fast lane, thereby clogging traffic just enough so the person behind them can get a really good look at the "Je me souviens" on the back license plate.
I wish that vanful of damned Froggies would hop the hell over to the slow lane.