This is the idea of gently (or not, depending on who you are, I suppose) sneaking up to your partner and getting them aroused, causing them to stop what they're doing and make sweet sweet love with you. One minute he's playing a videogame...then next he's not! It's not meant to be forced, either...it's just a little sneaky persuasion. I think you all know what I mean.
Personally, I think it's a lot of fun. And that means you should try it, too! C'mon, you know you want to join us.