carrying-on

noun, plural car·ry·ings-on. Informal.

1. irresponsible, irritating, self-indulgent, or overwrought behavior: The baby-sitter was exhausted from the child’s noisy carrying-on.
2. improper or immoral behavior.

noun plural carryings-on informal

1. unconventional or questionable behaviour
2. excited or flirtatious behaviour, esp when regarded as foolish