Definition
Synonym of in short trousers (“quite young”).
Origins
From an early 20th century practice of reserving short pants only for small children.
In Context
- "Near-synonym: in diapers"
- "Look, honey, this ain't my first rodeo, OK? I was doing this when you were in short pants."
- "Dr. Smith said a moment ago that we are scientifically adult but spiritually in short pants."