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2.
A exclamation/response to something that takes an exceptionally large amount of effort/time. Derives from long/long ting.
'Long cakes!'
'We've got to wait in this tonk queue... long cakes!'
by bugaloo September 27, 2006
 
1.
Longcake....a big man with a very very small appendage.
Look at the size of his hands,he must have a big penis.No he's a Longcake.
by wilkins19 January 15, 2010