know the difference between one's ass and one's elbow

Verb

Synonym of know one's ass from a hole in the ground

Japanese Meaning

常識があり、何が何だか分かる / 最低限の判断力や識別力を持っている / 基本的な区別ができる

Sense（1）

Synonym of know one's ass from a hole in the ground

knows the difference between one's ass and one's elbow

（ present singular third-person ）

knowing the difference between one's ass and one's elbow

（ participle present ）

knew the difference between one's ass and one's elbow

（ past ）

known the difference between one's ass and one's elbow

（ participle past ）