Gibas rhymes with:
dybas, ribas, amoebas, baba's, beeba's, ciba's, cordoba's, cordobas, cuba's, dubas, dybas, guba's, kubas, lubas, mambas, rebbe's, ribas, sabas, simba's, toshiba's, urbas
Gibas sounds like:
gaffes, gap's, gaps, gasps, gebbie's, gibb's, gibbs, gibbs's, gibes, giveaways, giveback, givebacks, gives, gobs, goofs, goosefish, gopac, gopac's, gossips, govpx, govs, gozofsky, guavas, guba's, guffaws, guppies, gypsies, gypsy