Top definition
a word used when one does something that requires instant profanity, yet your company or surroundings do not permit you to say "mother-f*****"
by saying "mother-fullstop" you are making clear that you did not intend to add any other word to "mother".
hence, no-one can whoop your ass.
(stubs toe at work)
"OH MOTHER-FULLSTOP."

you are in a cinema and turn around to glare at the couple sucking face next to you, only to find it is your pig-headed ex boyfriend and his new barbie.
"MOTHER-FULLSTOP! HIDE ME!"
by k-tea August 28, 2008
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