In my experience when conservatives talk about how liberals aren't "tolerant" they usually define the term in a way that they don't hold for themselves and they ignore a HUGE fundamental and profound difference that's often the case between the two of them.
This is speaking in generalities and their are definitely exceptions, but I've found that when a "liberal" doesn't like something they will often go out of their way to bitch and moan about it. If they think that person or his ideas are stupid they will call them on it, often very VERY harshly. They believe that being tolerant doesn't mean other people have some protection from getting their feelings hurt or being told of how stupid they and their ideas are....However baring what somebody does or thinks hurting other people they will usually think those they disagree with have the right to do what they want and to think how they want.
Conservatives on the other the other hand will not only tell off other they don't like and disagree with but much more often either:
1. They to get those they disagree with or their ideas to cease existing either by direct force or by manipulating laws.
2. Try to usher and orchestrate those they disagree with or their ideas into becoming second class human beings where they aren't afforded the same rights, benefits, and protections as they themselves have.
Both of those will be irrespective of whether whom they disagree with is hurting anybody else by their thinking and actions.
There is a huge difference between those two ways people conduct themselves when dealing with people they are "intolerant" of.