Leapfrogging rhymes with:
cataloguing, bagging, banging, begging, belonging, binging, bogging, bootlegging, bragging, bringing, bugging, cataloging, cataloguing, chugging, clanging, clinging, clogging, debugging, demagoguing, digging, dogging, dragging, drugging, egging, fatiguing, flagging, flinging, flogging, ganging, gigging, hanging, haranguing, hogging, hugging, intriguing, jitterbugging, jogging, lagging, legging, logging, longing, lugging, mudslinging, mugging, nagging, overhanging, pegging, pinging, plaguing, plugging, prolonging, reflagging, reneging, rigging, ringing, sagging, sandbagging, shrugging, singing, slinging, slogging, slugging, snagging, snugging, springing, stinging, stringing, swinging, tagging, tugging, unflagging, upbringing, wagging, winging, wringing, zigzagging