Verb (5-dan, る, transitive)
1. to shake; to jolt; to rock; to swing; to sway
その肩をちょっとだけ揺さぶってみた。I tried shaking that shoulder just a little.
2. to shake (e.g. the political world); to disturb; to shock; to upset
心を揺さぶる衝動の正体は分からない。I don't know the true nature of the impulse that shakes the heart.
3. to put off a batter (by varying one's type of pitch)