かんじゅく (完熟)

I saw an advertisement for this new cocktail and accidently read it as 'selling fever' which is WRONG!! (similar kanji kinda) This is "completely ripe" which makes sense with mango, the cocktail flavor being 完熟マンゴー which sounds yummy.

さいばん (裁判)

My judicial vocabulary gap was on high display when one of friends tried to discuss the rule of law with me. This word is "court" (or judgement?) with its linked word 裁判官 (さいばんかん) clearly meaning 'judge' and now you know.

したこころ (下心)

I knew this word but didnt notice it in the conversation so here it is "secret intention" which can be seen in the kanji.