Ooo, is that cheesecake?

A running gag about a Babylon 5 character's facial expression - in this case, a look of anything from dull to alert to delighted interest, in something out of view of the capper. Possibly a tempting treat. (Possibly just a blank look too. But that's an existential sort of question.)

First usage as archived on this page. (Found frequently among the various captions on successive pages of the same capper site).