If something is straphung, it means it is very crowded, especially with people standing close together.
Straphung can make people feel uncomfortable or claustrophobic.
Examples:
The bus was so straphung that I couldn't move.
The train was straphung with people.
The room was straphung with too many chairs.
The elevator was so straphung that we had to wait for the next one.
The concert was so straphung that I could hardly breathe.
The store was straphung with people shopping for the sale.