One syllable words that rhyme with have_a_go_at_it
au, aux, beau, beaux, bleau, blow, blowe, bo, boe, boeh, bow, bowe, breau, breault, breaux, bro, broe, browe, chau, cho, choe, cloe, clow, co, co., coe, cro, crow, crowe, dau, doe, doh, dough, eau, flo, floe, flow, flowe, foe, fro, froh, gau, glo, gloe, glow, go, goe, gogh, goh, gro, groh, grow, growe, ho, hoe, hoh, jo, joe, joh, know, ko, koh, krogh, kroh, krowe, kyo, lo, loe, loew, loewe, loh, low, lowe, luo, m'bow, mau, meaux, mo, moe, mow, nau, neault, ngo, no, noe, noh, o, o', o., oh, ow, owe, plough, po, poe, poh, pro, queau, quo, reaux, rheault, rho, ro, roe, roh, rohe, row, rowe, schau, sew, sgro, show, sloe, slow, snow, snowe, so, sow, stow, stowe, stroh, strow, tho, though, throw, toe, tow, towe, trow, tso, vo, whoa, wo, woe, wroe, yau, yo, yoe, yoh, zoh, baade, brod, clod, cod, codd, dodd, fahd, glod, god, hodde, nod, odd, plod, pod, prod, quad, raad, rod, rodd, saad, schaad, scrod, shod, sod, squad, tod, todd, trod, wad