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To perform the sexual act upon yourself of self prostate massaging, live on webcam to someone who you don't know.
Liam had his life ruined by "Doing a Spitfire" by going on MSN to a load of guys he thought were girls and fingered his bot bot, which was then PrtSc and uploaded onto a dnb forum! "Ah f*ck, i've been Spitfired"
by MrJustice's PA June 04, 2009
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