KanjiJLPT N1
Younger Uncle

uncle, youth

Mnemonic

Your Younger Uncle stands above the children at the reunion, but only a little taller than them. Once more he puffs out his chest trying to seem important, but everyone just chuckles—he's forever the baby of Dad's generation, always overcompensating.
Additional thoughts
Picture your dad's kid brother on tiptoes (above + little) repeatedly puffing up (once more) at family gatherings—always the youngest, always trying too hard.
Quick recall
Above the kids but only a little bigger, once more overcompensating—the eternal Younger Uncle.

Details

The keyword for 叔 is younger uncle. This kanji refers specifically to one's father's younger brother, reflecting the traditional East Asian kinship system that distinguishes between elder and younger siblings of one's parents. In this hierarchical family structure, the distinction between older and younger uncles carried significant social and ceremonial importance. By extension, the character can also refer more generally to a younger uncle or a man of one's parents' generation who is junior in age or rank.
On'yomi
しゅく