it means both
but i thought the meaning behind it was pretty obvious
( Yeknom. Incontinence and Premature ejaculation? Easy come, easy go., Sat 21 Aug 2004, 0:56, archived)

does it fuck
See Oxford English Dictionary
Even dictionary.com agrees, and they think irony means "of or similar to iron".

perhaps you are thinking of subscript or postscript?

edit: fascinating this and strangely pertinent. From the postscript definition;
— ORIGIN Latin postscriptum, from postscribere ‘write under, add’.

perhaps Jenny didn't dump you, you just misunderstood what she was saying?
( .spanky is singing "PEANUTS!", Sat 21 Aug 2004, 1:10, archived)