v. : to ignore a Facebook invitation to an unfavorable or undesired event, until the event has passed, rendering the invitation moot; esp. an event happening shortly after the invitation was sent.
"I really didn't want to go to Megan's Party, so I pocket-veto'd the invitation."
Guy A: "WTF
? I was hoping Lauren would show up to this. Last time I checked the event page she hadn't responded yet..."
Guy B: "Sounds like you got pocket veto'd you."
Guy B: "Sounds like she gave you a pocket veto."