saddle-v; 2 Senses

Sense Number 1: Put an actual saddle on or get into a saddle.

Saddle up, boys!
We saddled horses for the ride ahead.
Some horses don't saddle well.

VerbNet: butter-9.9
FrameNet: NP
PropBank: NM
WordNet 3.0 Sense Numbers: 1

Sense Number 2: Burden with an object or a task.

He saddled me with a great responsibility.
He saddled her with cleaning up all the files.
Don't saddle me with secrets.

VerbNet: equip-13.4.2-1
FrameNet: NP
PropBank: saddle.01
WordNet 3.0 Sense Numbers: 2, 3