Lizards jumping around the plastic bag

I'm in the mood for writing rubbish tonight. My mom just said the one sentence I get amused by almost all the time. "If you don't tie the rubbish bag and throw it down the chute, lizards will go jumping around the plastic bag". The last part always makes me want to giggle since it's in mandarin and sounds funny and happy --lizards tiao4 lai2 tiao4 qu4. Like they're jumping in joy.

Okay, the part that isn't so funny is really seeing the lizards jumping around.