To be doing more than one thing at the same time; to be doing s.t. to more than one thing or person at the same time [N-]; (for people or animals) to do s.t. together at the same time [mag-]; to put things together [magsi-].
Iya ngulambing anak-anak looy llambot.
He is the one who spanked those children together at the same time.
These children are always together in whatever they are doing.