köken: Literally: "on top of a fyke-net", i.e. in the midst of an action; most likely a reference to being caught while stealing fish from somebody else's fyke-net.
köken: From คา (kaa, “still (in, at, with, etc)”) + หนัง (nǎng, “skin”) + คา (kaa, “idem”) + เขา (kǎo, “horn”); literally "still with skin, still with horns"; describing a person who steals a beast of burden and is caught with the animal's skin and horns in possession.