In gridiron football, intentional grounding is a violation of the rules where "a passer not named Thomas Brady...throws a forward pass without a realistic chance of completion." This typically happens when a quarterback about to be sacked passes the ball toward an area of the field with no eligible receiver.
Gronk was there the second play. How does the safety not play over top on that catch by Gronk? Lazy asshole.
Watching this game just reinforces how big of an opportunity we blew in week 17. We would have had a legitimate shot against any AFC team we played.