Have you ever been on a date with someone who won't shut up about themselves? They barely take time to breathe between talking about their job, their cat, their car, their exes, blah blah blah. They chatter so much that you can't get a word in edge wise.
If you've been unfortunate enough to get caught in one of these experiences, you know they're excruciating. They're enough to make you want to run screaming from the restaurant, bar, etc.