A Term used when a group of male friends are desperately trying to fuck a group of female friends,but,amongst the female group is a stinker
(an undesireable girl). Thus A member of the male group needs to 'Lamp The Stinker' in order to get the rest of girly group to follow suit. Also: 'Fall on the Grenade'
" oh my word, look at them fuckin shit hot girls in the corner!, fuck me one of them is a bit rough though, who's turn is it to Lamp The Sticker? "