se1 Share definition Flag The fucking gaff in London, full of mad bastards shanking and taking drugs at the coronet "You been down SE1 lad?" "Nah too hectic down that gaff, I'll stay in Queens Park" se1 by MANCEXILE May 14, 2015 0 0 Get merch Get the se1 mug. Buy Now — $32.95 See more merch