How does Marion Meade use imagery in Dorothy Parker: What Fresh Hell Is This??

Imagery:

"Her tongue seemed born quick and deadly, like a knife already implanted before anyone could catch a glimpse of the blade. She took pleasure in galloping to the punch line before her victims got there."

"Their habit was to shove the troublesome parts of life, all the painful stuff they found hard to acknowledge, under Frank Case's big table and pull the cloth down."