The hole in pajama bottoms that is designed for you to put your dick through and pee out of. Not sure if anyone actually uses these.
Jim: "the pajina on my pajamas is pretty tight. I never use it"
John: "I use my pajina all the time, its wider than a train tunnel."
by Dylan Khols January 24, 2012
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Vaginal access slit to your clit in your pajama bottoms.
Girl: like my new pajamas?

Guy: yeah girl, can't wait to slip in that pajina.
by Pajina Man December 16, 2013
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