sextension visa Share definition Flag Visa extension to facilitate ongoing doing of the nasty (aka having hot steamy sex). I can't believe you're leaving tomorrow, we need to get a sextension visa for you so we can do it like rabbits. sextension visa by JohnConnor227 June 29, 2009 0 0 Get merch Get the sextension visa mug. Buy Now — $32.95 See more merch