General Jealousy:
* Green with envy: This is the most common idiom for jealousy, referencing the color green often associated with envy.
* Eat your heart out: This expression implies that someone is so jealous they're consuming themselves with envy.
* Burning with envy: This portrays jealousy as a hot, consuming emotion.
* Die of envy: This emphasizes the intensity of jealousy, implying it can be almost unbearable.
* Sick with envy: This suggests jealousy is like a disease, making someone ill.
* Choking on envy: This emphasizes the feeling of being suffocated by jealousy.
* Turn green: Similar to "green with envy", this phrase describes the physical reaction of jealousy.
* Eyes pop out of your head: This suggests jealousy is so overwhelming it makes you physically react.
Romantic Jealousy:
* Have a jealous streak: This implies someone is prone to being jealous in romantic relationships.
* Get possessive: This suggests someone becomes overly protective and controlling out of jealousy.
* Go ape: This describes a person becoming uncontrollably jealous and acting irrationally.
* Act like a jealous child: This compares a person's jealous behavior to that of a child.
* Go ballistic: This implies someone becomes extremely angry and aggressive due to jealousy.
Other:
* Get a swelled head: This suggests someone becomes arrogant and proud because they are envious of someone else's success.
* Want what someone else has: This describes a basic desire for something someone else possesses, often stemming from jealousy.
Note: Some of these expressions are more colloquial and casual than others. The best choice will depend on the context and tone you want to convey.