Final consonant is not clear in this recording. Could be any of the following:
tuuyum (teteyuum) "sets out chunky object (e.g. a box) in the sun"
tuuyumk "are gathered together," like leaves in a pile (Mesa Grande dictionary) or people at a meeting (Cuevas)
tuuyump (tetuuyuump) "is sunning himself"
Compare to aayum/aayumk/aayump.