ほろほろby ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.

桜(さくら)の花(はな)びらがほろほろと散(ち)っている。

The cherry blossom petals are falling quietly one by one. {by ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.}

映画(えいが)を見(み)ながらほろほろと涙(なみだ)を流(なが)しました。

While watching the movie, I quietly shed tears one by one. {by ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.}

山(やま)のどこかから山鳥(やまどり)のほろほろという鳴(な)き声(ごえ)が聞(き)こえる。

From somewhere in the mountain, the gurgling sound of a mountain bird can be heard. {by ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.}

このクッキーは口(くち)に入(い)れた途端(とたん)にほろほろと崩(くず)れてしまいます。

This cookie crumbles and falls apart the moment you put it in your mouth. {by ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.}

ほろほろと涙(なみだ)を流(なが)している彼女(かのじょ)には、一体(いったい)どんなことがあったのだろうか。

What on earth could have happened to her, as she quietly sheds tears one by one? {by ones and twos, tears or flower petals falling quietly, gurgling bird sound, falling apart, crumbling, melting (in one's mouth), dish made from fiveleaf aralia sprouts, pickled daikon, walnuts, etc.}