V-shaped Y-shaped akimbo angular at bay aux abois bent between two fires crooked crotched endangered forked furcal furcate geniculate geniculated hooked imperiled in a corner in a predicament in danger in desperate case in extremis in jeopardy jagged jeopardized knee-shaped on the spot pointed saw-toothed sawtooth serrate sharp sharp-cornered threatened treed up a stump up a tree zigzag