Besides, it's probably better to land on your bum and get your face in the news for being childish, than end up at the wrong end of a starcruisers cannons.
I'd guess something like "strength" or "support" unless it's closer to a human color association, in which case it could be that they're pledging their lives to their goal.
Wait, Iri was wearing something under that dress? Sure didn't look that way previously. Unless she put some shorts on when she went to look for Shark, specifically because she knew she'd have to literally kick her out.