1. Godan verb with 'ku' ending, Transitive verb

   to poke (repeatedly, lightly); to nudge

   Usually written using kana alonesee 突くsee つつく・1

   ハゲタカが突っつく死んだ鹿とか、他の動物の食べ残しとか、 そういう腐った肉を死肉と書きました。

2. to peck at (one's food); to pick at

   Usually written using kana alone

3. to peck at (someone's faults, etc.)

   Usually written using kana alone

4. to egg on; to put up to

   Usually written using kana alone

Also written 突っつく【つっつく】tsuttsuku