Liquid sloshing leads to spillage, waste, and operational inefficiency across multiple industries. Although strategies such as baffle designs and foam inserts exist, they often fall short in real-world dynamic conditions. Inspired by liquid-stabilizing mechanisms of pitcher plants and impact-dampening notches of water lilies, we introduce a dual-biomimetic cup design that enhances liquid stabilization using three-dimensional printing to construct structures and superhydrophobic coating for wettability boundary modification. Our system integrates patterned hydrophilic-superhydrophobic boundaries with strategically placed superhydrophobic notches, synergistically stabilizing water surfaces and dissipating oscillatory energy. Comprehensive tests-including centrifugal, vibrational, and real-world transport scenarios-demonstrated a spill rate of approaching 0%, as well as robust resistance to water sloshing. Notably, a four-tier tower of dual-biomimetic cups mounted on a car retained nearly 100% of their liquid after traversing 50 alternating speed bumps, whereas conventional cups lost more than 40%. Our bioinspired method demonstrates a scalable and versatile approach that bridges natural wetting strategies with practical engineering applications in liquid transport and containment.