YOU SAID:
I just shat my pants son
INTO JAPANESE
私はただ私のパンツの息子を打った
BACK INTO ENGLISH
I just beat my pants son
INTO JAPANESE
私はただパンツの息子を倒した
BACK INTO ENGLISH
I just beat my son in pants
INTO JAPANESE
息子をパンツで殴っただけ
BACK INTO ENGLISH
I just beat my son in pants
Well done, yes, well done!