soft; mushy / well-cooked and soft / to rot; to decompose / rotten / worn out / chaotic; messy / utterly; thoroughly / crappy; bad
烂
=
兰
+
火
:
Sir Lancelot (l) is taking a bath in the anthill's bathroom (an4). The bathtub is sitting on a fire (火), so the water is really hot. Sir Lancelot has added a few orchids (兰) to the bath, but because the water is so warm, they're all mushy and rotten (烂).