乱跳

to jump about / (of the heart) to beat wildly

in confusion or disorder / in a confused state of mind / disorder / upheaval / riot / illicit sexual relations / to throw into disorder / to mix up / indiscriminate / random / arbitrary

to jump / to hop / to skip over / to bounce / to palpitate

to leap and frisk about (idiom); lively / healthy and active

glowing with health and vivacity (idiom)