be in full swing
if an event or process is in full swing, it has reached its highest level of activity

[TahlilGaran] Dictionary of Contemporary English ▲

in full swing
moving quickly forward.
In Moscow, a building boom is in full swing.

[TahlilGaran] English Idioms Dictionary ▲

in full swing
1. full capacity, greatest activity
The basketball season was in full swing when we decided to buy season's tickets.

2. in progress
The campaign to stop people from smoking is in full swing.

[TahlilGaran] English Idioms Dictionary ▲

in full swing
adj. phr. Actively going on; in full action.
The Valentine party was in full swing.
All of the children were planting seeds; the gardening project was in full swing.

[TahlilGaran] English Idioms Dictionary ▲