Shounen-ai, Yaoi. Basically boy-love. Gay love between men, etc. Generally used when referring to Manga, Anime, J-rock/pop singers/bands, and Visual Kei artists.
'Did you read the newest Love Pistols?'
'I did, that manga has so much blove in it!'
'Miyavi is so into Blove.'
'Gackt's into Blove too, with Hyde.'