月はそんなに俺を笑い殺したいのか！？
Does Light want to make me die of laughter?


Another definition is (in this case for the noun 笑い殺し):
ツッコミ下手、空気読めない (from https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1446704939)
kill the laughter (with unfunny jokes)