look up any word, like thot:
 
1.
The last person to date someone before someone started dating his/her eventual spouse.

First coined by the writers of 'Freakanomics'.
Jenny is such a penultamour, her last three exes have already walked down the aisle!
by skc107 January 13, 2009

Words related to penultamour

bummer dating marraige missed-connection unlucky