A snogger is a sick individual who's obsessed with David Duchovny and Gillian Anderson from The X-Files, wants them to get together and desperately wants to believe that in the past the two actors had a relationship. Snoggers spend their time analysing pictures with DD and GA in it in order to find what in their mind is "evidence" to their theory.
A snogger wrote: Personally, I am just waiting for the day when David leaves that stupid succubus of a wife and crawls into Gillian's arms.