1. To become lodged, jammed, or stuck into some tight space. I thought the car would fit, but it ended up wedging into the narrow alleyway. The fabric got caught on the machinery and wedged into the gears.

2. To jam or lodge someone or something into some tight space. A noun or pronoun is used between "wedge" and "in"; often used in passive constructions. The table kept wobbling, so I wedged a napkin into the gap underneath one of the legs. I was wedged into my seat for the entire performance. She wedged her hand into the opening to stop the leak.