笛を吹く (ぶえをふく)

Definition:
v. to whistle

Kanji Components:

笛 (ぶえ) [flute; clarinet; pipe]
吹 （ふき）[blow; breathe; puff]

家の中に笛を吹いたら、へびにかまれるという日本のめしんがあります。
There is a Japanese superstition that states if you whistle inside your house, you'll be bitten by a snake.