We like Exploding Kittens---from the kids right on up to the adults. We get a kick out of Headbandz, too. They both work well for all ages and the allow people to enter or leave the game easily because you can play multiple rounds in a relatively short amount of time.
I don't recall the name of the game, but perhaps someone else will recognize it and chime in---(I found it: "
Spontuneous") but you are supposed to try to stump people by coming up with a word that they cannot come up with a song lyric for (but that you can). Now, on its own, it can be pretty impossible if people playing don't have the same taste in music, but what we did last year, was to add a rule that all songs had to be Christmas songs. And that made it easy for all ages to play, plus it fit the holiday as well. So if my team gave the word "mantle", the first team to sing 5 words from a Christmas song with that word would get the point. If no one could do so, but my team could ("Over the ground, lies a mantle of white"), then we'd get the point.
ETA: Apparently there is a similar game called "Encore", too. I found that one while looking up "Spontuneous".