the.com/touchy
Emotionally made of dry pine needles, eternally one spark from a forest fire.
means Overly sensitive and quick to take offense, ready to flare up at the smallest provocation.
from From touch plus -y, suggesting a person so raw that even a light touch stings — first noted in the 1600s, possibly nudged by tetchy, an older word for irritable.
Double meaningAlso describes risky, delicate situations, not just people.
Sibling wordTetchy predates it and means roughly the same thing.
Body logicBuilt on touch, treating feelings like literal bruises.