GR translation: Bakerbakerbaker!

[Mike Jing]

V389.9-14  (P395.19-24)   “Bakerbakerbaker!” hollers somebody down in
Sonar, loud and scared, over the phones. It means hostile torpedo on the
way. Coffee messes go crashing, parallel rulers and dividers sliding across
the glass top of the dead-reckoning tracer as the old tin can goes heeling
over around onto an evasion pattern that was already obsolete during the
Coolidge administration.

Any idea where this designation for torpedo might come from?  Simple
Googling yielded this:

http://deansgarage.com/2011/electric-baker-torpedo-racers/

Not sure if it has any relevance.
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