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13.
Of Irish origin, feck is what a lady says when she really wants to say fuck
So Mary is a real lady, when she gets mad she says feck it anyway instead of fuck it
Me Mam told me to tell ye to feck off
by yatenga December 09, 2011
 
22.
A merging of the words 'face' and 'neck' to describe someone who has little or no chin/jawline definition.

People with fecks have faces that literally appear to merge straight into their necks.
Poor Sally was sad because she had a feck.
by Cassandra Nilsson August 02, 2007
 
23.
from old Scots or Irish - literally 'effect' - has fallen out of use in this context, but is a the origin of the word 'feckless'
these drugs have yet to have a feck
by PenhaligonBlue May 17, 2005
 
24.
often misused as a substitute for the word 'fuck' this word is used to specify a large quantity
a feck of books
jaysus, thats a feck of lies
by Just Crusty June 27, 2005
 
25.
a mild, more socially acceptable form of the famed "F" word. Commonly used in online forums and such.
"Feck off!"
"What the feck?"
by Adustus November 12, 2004
 
26.
slang for the word "f*ck."
Ex. 1 "What the feck?"

Ex. 2 "I could give a good feck."
by Mike Hoffshire October 16, 2005
 
27.
As well as being an intentional alternative to the word fuck, people with extremely noticable California accents say the word "fuck" in a way that comes out more like "feck."
Oh feck, man, the waves are like totally non-surfable today dude.
by bohemian September 20, 2006
 
28.
Watered down version of the word "fuck." Many use it so as they implie the word fuck, but by not actually saying it they seem to appear less offensive
"Feck Off, You Fecking Feck!"
by Gilbo January 06, 2005