1. a playful game in which two people touch each other's feet under a table, typically as a flirtatious gesture
Usage: informal; often used in the phrase 'play footsy' or 'play footsie'

Examples

• They were playing footsy under the dinner table.
• She caught him playing footsy with someone else at the party.
• The couple played footsy throughout their romantic dinner.
• He denied playing footsy, but everyone at the table noticed.
• Playing footsy is a lighthearted way to flirt.