Cast/draw/throw a veil over something negative spoken language verb phrase
To avoid talking about something because it is unpleasant.
Mom, I don't want to talk about that problem now, can we just draw a veil over it.
To avoid having a fight about that issue, they decided to draw a veil over it.
Every time I try to mention having a child, James always seems to draw a veil over it.
After two hours of debate about that issue, we decided to cast a veil over it.
It's mostly used in the present tense.
Children or adults often say this phrase to get their friends to join in something, especially to jump into a swimming pool (pond, lake, etc.)
“Last one in is a rotten egg!” yelled Jane, jumping into the pool.