mayo

[Barnhart]

This morning a local program on words noted that the earliest evidence
for mayo (=mayonnaise) is from 1960.  This no doubt is from Wentworth &
Flexner.  I've looked about a bit and the only suggestion of earlier
evidence is from W&F where they say "common since 1930."  Surely it
must be earlier than 1960.

Are there some lunch-counter slang lists?

Regards,
David K. Barnhart
Barnhart at highlands.com