Manspreading? The word has yet to find its way into a standard English-language dictionary, such as Merriam-Webster.
A Scourge Is Spreading. M.T.A.’s Cure? Dude, Close Your Legs. (The New York Times, 12/20/2014)
Here's how it would be read and marked.
<Taking on manspreading for the first time, the authority is set to unveil public service ads that encourage men to share a little less of themselves in the city’s ever-crowded subways cars.
The targets of the campaign, those men who spread their legs wide, into a sort of V-shaped slouch, effectively occupying two, sometimes even three, seats are not hard to find. Whether they will heed the new ads is another question.>
The 1st paragraph contains the word. The 2nd paragraph includes information that may be incorporated into a dictionary definition.