Two meanings: 1) Gathers up chunky objects, 2) They have a meeting (imagine gathering up people)
Equivalent to Barona aayumk "they gather together, meet, have a meeting". Especially common in other dialects is mat aayum "they meet, gather, get together", or some variation.
Similar word uuteyump "rounds up (animals, etc.)"
The final "k" does not come out well in the recording.