obasuti

1. (someone + instr.) to shower with; to lavish on; to bombard with
   Novinari su ga obasuli pitanjima. — The journalists bombarded him with questions.
   Baba je unuke obasula poklonima. — Grandma showered the grandchildren with gifts.
2. to shower; to strew; to cover
   Gosti su mladence obasuli laticama ruža. — The guests showered the newlyweds with rose petals.

What someone is showered with goes in the instrumental: obasuti koga cvećem, pažnjom.