wavy, waving, line. zig-zag, criss-cross lines . undulate, billowy effect lines

billow billowy camber crimp crink crinkly curl curve curved curving curvy deform deformation distort distortion divider flicker flutter frizzle frizzy horizontal irregular kink kinky line meander oscillate oscillation resonance ripple ripply roll serpentine shake sine sinuous snake snaky squiggly swing tortuous twist undulate vector vibration wag wave wavy wiggly winding wobble