Definitions for nobbler
Random House Webster's College Dictionary
nob•bleˈnɒb əl(v.t.)-bled, -bling.
Brit.to disable (a race horse), as with drugs.
Brit. Slang. to convince (a person) by lies. to swindle.
Origin of nobble:
1840–50; back formation from nobbler, alter. of hobbler (dial. phrase an 'obbler being taken as a nobbler)
A serving of beer or spirits.
a dram of spirits