act up
• behave badly.
• "all children talk back and act up from time to time"
Similar:
misbehave,
give someone trouble,
cause someone trouble,
act badly,
get up to mischief,
get up to no good,
be bad,
be naughty,
forget oneself,
misconduct oneself,
clown about,
clown around,
fool about,
fool around,
act the clown,
act the fool,
act the goat,
act foolishly,
carry on,
mess about,
mess around,
muck about,
muck around,
play up,
• be promoted to a more senior position on a temporary basis.
• "she has been acting up as a consultant in public health"
