The phrase "crisscross pattern" refers to a design or arrangement where lines or objects intersect each other diagonally, creating a crossed pattern. Full definition
Flatten slightly in crisscross pattern with tines of fork. (amandascookin.com)
Make crisscross pattern on top of each Cookie by pressing down with fork. (vegetariantimes.com)
On each of the cheeks, lightly score the fruit flesh in a 1/2 - inch wide crisscross pattern, taking care not to cut through the skin. (organicauthority.com)