Down in the Bar!
The traditional answer to where to find any filthy pro who isn't around to be introduced at opening ceremonies or wherever else he's supposed to be, begun about Tucker at Nolacon.

from Fancyclopedia 2 ca. 1959
(1) (Tucker) Rallying cry for the depressed and weary at NOLaCon.
(2) General answer at a convention to "Where is Jophan?"

from Fancyclopedia 2 Supplement ca. 1960:
Not a story by Tucker, but about him; that's where he was every time Harry Moore called for him. It became the big laugh-line of the convention Nolacon, with Bloch even telling a long, involved story at the banquet in which Tucker encountered a bruin and wound up down in the b'ar.