Let's discuss how this happens and how to avoid it, shall we?
First, our assumptions ... we're talking about regular drip coffee from a standard office coffee maker. Not Turkish Coffee. Not some French press thing. Nothing fancy or complicated. Here's the basic concept.
|fig. 1, Coffee correctly confined in filter|
Here's how it can go terribly wrong...
|fig. 2, Coffee has escaped the filter!|
The end result.....
|fig. 3, an unpleasant coffee-covered tongue|
Do not just fling the grounds haphazardly at the filter, as I suspect you are doing currently. You are not Tom Cruise in "Cocktail" when you make coffee. Take your time and do it right for once.
|fig. 4, some jerk|
Seriously. I'm sick of crunchy-style coffee.