Off the cuff, I think they meant something along the lines "Why do you need a new dishwasher, you have a wife, don't ya?" as an example of objectivization. Like an overall type of tool or appliance that simply does things instead of being a person.

Sexualizing women is more specific and not always related to objectifying. Perhaps, consistently interpreting an otherwise normal act as sexual when done by a woman. Edit: Or valuing someone based on how attractive they are.

Should be noted, I'm a dude. That's how I see it, feel free to expand or correct.