Bust: there are many definitions, but everybody always thinks about breasts.
In other words, if the room were filled with men, certain subjects were available. Yet if one single woman appeared, the topic–especially the approach–had to be changed.
I completely understand this.
People have certainly learned it’s not good to do jokes about Mohammed in front of the Muslims. They don’t have a sense of humor on the subject.
Even though you may want to come off as relaxed when visiting your friend in the hospital, referring to cancer as the “Big C” is probably not the best selection.
And many men and women are quite uncomfortable discussing female breasts.
This is confirmed by how carefully we avoid using the word “boobs.” Yet even women call them boobs. Most ladies don’t particularly favor tits, but there are so many names for them that it would be impossible for me to go into the full extent of the vocabulary in this brief essay.
So even though the word “bust” is a generally acceptable term for, as we say, mixed company, it is not very good for romantic encounters. In the heat and passion of seduction, stopping to say “bust” might even tamp down the moment.
Now, I don’t know exactly what you can garner from my little observations, except to know that since America seemingly is in the midst of an emotional migraine–where people are pained by everything–it might be better just to avoid using any term whatsoever … and point.