嘘つき (うそつき, usotsuki) Japanese meaning: liar | Kotomora。
That kid is a liar, so I can't trust them.
Lying is the first step to stealing (proverb).
Expressions
嘘つきは泥棒の始まりlying is the first step to stealing; show me a liar, and I will show you a thief
き
Usage<1%
Alternate kanji spelling using 吐く (to spit out, to utter); less common but still encountered.