おこぼれに預かる
Meanings
1
get a small share of the profits; get a tiny portion of what someone else is enjoying
Idiomatic expression meaning to receive a small benefit or leftover gain from someone else's success or enjoyment. Often used humorously or self-deprecatingly.
My senior's project succeeded, and I was able to get a small share of the benefits.
Let's get a little taste of the cake he bought.