"Margaret thatcher the cum snatcher" is a nickname or term you give to someone who is always vigorously horny and craving sex for the pure enjoyment of seman.
Joe: I just had sex with Bianca.
Nick: why she's always trying to be "Margaret thatcher the cum snatcher."
Joe: true but I heard shell do anything for sex.
Nick: but still she "Margaret thatcher the cum snatcher."
MARGRET THATCHER IS DEAD!
DING DONG THE WICKED BITCH IS DEAD!
ITS A SHAME THE BITCH DIDN’T DIE 87 YEARS AGO!
ITS A SHAME THE IRA DIDN’T KILL THE BITCH!
To Margret Thatcher:
OBJECTS THAT IV’E SHOVED UP MY ASS! PENCILS, UMBRELLAS, BROOMSTICK HANDLES..........