agitate

Short definition from Wiktionary

Verb

1. 1
   To disturb or excite; to perturb or stir up (a person).
2. 2
   To cause to move with a violent, irregular action; to shake.
3. 3
   To participate in political agitation (sense 3).
4. 4
   To set in motion; to actuate.
5. 5
   To discuss or debate.
6. 6
   To mull over, or think deeply about; to consider, to devise.