嘘っぱち[usoppachi] downright lie 嘘っ八百[usoppappyaku] full of lies 嘘でかためる[usodekatameru] to fabricate a web of lies 嘘を付く[usowotsuku] to tell a lie 嘘字[usoji] incorrect character
嘘付き[usotsuki] liar (sometimes said with not much seriousness) 嘘八百[usohappyaku] full of lies 大嘘[oouso] big lie 嘘ぶく[usobuku] to exaggerate