wktk: An abbreviation of "wakuwaku tekateka (ワクワクテカテカ)" roughly translates to "storked" or "excited".

kwsk: Abbreviation of "Kuwashiku (詳しく)". "Details Please".

sneg: Abbreviation of "sore nante eroge? (それなんてエロゲ？)" Translates to "What's the name of the hentai game?" Used to insult serious poster.