On the edge of your chair - Idioms by The Free Dictionary
on the edge of your seat/chair (redirected from on the edge of your chair)
on the edge of one's seat
Fig. [of a member of an audience] closely following the action and excitement of a performance. We sat on the edge of our seats during the entire play.
on the edge of your seat (or chair) very excited and giving your full attention to something. informal
on the ˌedge of your ˈseat/ˈchair very excited and giving your full attention to something: The film was so exciting it had me on the edge of my seat right until the last moment.