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!"