To stroke, wipe, or rub (lightly, in order to wipe s.t. on or off a surface).
Pu'usun ko' bukutkun, ī' niya' takalessaku palele.
Please wipe my back; I feel something crawling there.
pu'us-pu'us
To stroke repeatedly, to caress (in order to comfort).
Pu'us-pu'usun nakanak iyan duk tumuli.
Stroke that child so that it will fall asleep.
My shoulder hurts from always stroking him.
They caress each other because they have just met.