1. plural of goony; silly, foolish, or eccentric people (informal)
Usage: informal; often used affectionately or playfully
2. members of a group of misfits or underdogs, especially in adventure or coming-of-age contexts (informal, from the 1985 film)
Usage: informal; cultural reference

Examples

• The goonies decided to put on a silly talent show for the neighborhood.
• Those goonies are always getting into some kind of trouble together.
• Don't be such goonies—we need to focus on the project.
• The group of goonies stuck together through thick and thin.
• She laughed at the goonies trying to dance at the party.