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UK railway slang for either a shunting signal or a subsidary signal.
Term is frowned upon within modern safety critical communications. Example being - shunter to driver "the signalman will give you the dummy in a minute" meaning the signal man will clear signal no. (XYZ) in a minute thus allowing the train to proceed.
dummy by Clansman April 22, 2009
Very, to an excessive degree.
Mr. Ewing's P.E. class is dummy hard!
dummy by liz October 1, 2005
Hey, why is that guy so stupid?
Stupid? He's a dummy!
dummy by StupidIdoitDummy March 29, 2017
Andrea is such an dummy
dummy by BadBlair October 11, 2019
A girl that sucks hella dick and she is known for doing it or a person who will fall for the dumass line such as i love you so someone can fuck
dummy by brebre21 November 6, 2007
A white woman who lets several black men have sex with her at the same time.
Yo, that dummy let us film her last night.
dummy by Me Baltimore May 2, 2006