RadicalComponents
Mnemonic (RtK)
ⓘleather · flowers (艹) · car (車) · mouth (口) · ten (十) · needle (丨) · change · person (人) · spoon (匕) · sitting on the ground
From "Remembering the Kanji" by James Heisig · Frame 2042
Compound words
being frustrated because something is not quite as hoped (just as one cannot scratch an itch from outside a shoe)