I’m not sure what overspoke is supposed to mean. When you overeat, it means that you’ve eaten too much. When you oversleep, it means that you’ve slept too much and missed, for example, an appointment. So does overspoke mean that you’ve said too much or you’ve used too many words?

This is yet another example of the disconnect that can occur between speaker and listener when the speaker makes up a word instead of using perfectly good veteran words that already exist; in this case, for example, verbose, loquacious, or long-winded.

Sherry