| improper or unethical conduct, as deception or trickery: He won't stand for any funny business here. |

| Main Entry: | funny business1 |
| Part of Speech: | n |
| Definition: | deceptive, underhanded behavior |
| Main Entry: | funny business2 |
| Part of Speech: | n |
| Definition: | foolish behavior; shenanigans |
| Main Entry: | funny business3 |
| Part of Speech: | n |
| Definition: | amorous behavior; sexual intercourse |
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monkey business
and funny business
|
funny business
Deceit, treachery, unethical conduct. For example, We suspect their outfit has been up to some funny business. [Colloquial; c. 1880]