Disney has something of a reputation for making jokes that are meant for the adults watching.

Well, it turns out that the kids’ programme Hey Arnold! has done the same kind of thing in a pretty subtle way.

Remember Hey Arnold!? You know, the kids’ programme about a boy with an American-football-shaped head? That’s him, in the middle.

Twitter user @STOPFLEXIN tweeted a screenshot from a Vine that appears to show some very adult action going on in the background.

If you want to see it in motion, here’s the Vine:

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