I'm trying to come up with a drinking game to help encourage me to finish watching Voyager. Just kidding.
Actually, I just cringe whenever I hear Janeway say "suffice it to say," because she says it A LOT. And then I was watching one of the Future's End episodes and both her and Neelix use that phrase within the same episode!
Another word/phrase is "Tachyon ____." If the writers need a techno problem or solution, a Tachyon something is usually at the top of their bag-o-babble.
Any other words or phrases that are used a lot in Voyager that you've noticed?