Green’s Dictionary of Slang

rector n.

1. the bottom half of a sliced teacake, which received the most butter [the rector was given (and expected) the best part of the cake].

[UK]Farmer & Henley Sl. and Its Analogues.

2. a poker kept only for show [such a poker was brought out when the rector was visiting].

[UK]Farmer & Henley Sl. and Its Analogues.