The idea that a higher power such as fate, destiny, or a god controls and toys with our lives; It is 'cosmic' because of the universal, all-pervading influence of the higher power, and it is 'irony' for the perceived control of one's own life when in fact no free will exists.
Joe couldn't believe the cosmic irony that all his girlfriends left him for another woman.
During sex, a person who lays face down, legs and arms spread (like a starfish) and takes it from behind, not moving, making no noise, exerting no effort, and leaving all the work up to the other person. Usually the starfish is gay and a total bottom who cares little about who is fucking them, instead just wanting to take it like a bitch from behind.
That guy I picked up last night was the worst lay ever; he was a total starfish.
