The Gish Gallop is a notorious tactic used by creationists: spew out lots and lots of bad arguments at a rapid fire pace, and mire the poor scientist in efforts to refute them one by one…which she can do, but only at a slower pace than the creationist can assert them. For a perfect example, Don Batten has 101 arguments for a young earth, every one of them stupid and dishonest. Imagine a debate in which your opponent rattles off all of those at you!
Fortunately, there’s this thing called the interwebs, where people at their leisure can organize and refute such nonsense. I recommend to you this rebuttal to 101 evidences for a young age of the Earth and the universe. Start reading.