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to bite at; to snap at; to nibble
to jump at (e.g. an offer); to snap at; to get one's teeth into; to really get into
to hold on to; to cling to; to stick to
to complain; to bicker
魚が餌に食い付いた。
The fish bit at the bait.
犬が骨に食い付いてなかなか離さなかった。
The dog bit onto the bone and wouldn't let go easily.
このビジネスチャンスに競合他社も食い付くだろう。
Competing companies will likely snap at this business opportunity too.