He says even a mosquito is meat — he's happy even picking up one yuan.
Tips
usage
A 俗语 (súyǔ, common saying) rather than a classical chengyu — colloquial in tone, used to justify accepting small gains. Often shortened to 蚊子腿也是肉 (wénzi tuǐ yě shì ròu, 'a mosquito's leg is still meat too').
memory
Picture wringing 'meat' from a mosquito — absurd, but the point is that nothing is too small to count.