Spring up and Strung-out

Spring up verb - To come to one's attention especially gradually or unexpectedly.

Strung-out and spring up are semantically related. In some cases you can replace phrase "Strung-out" with "Spring up", this terms are similar.

Strung-out adjective - Addicted to a drug.

Spring up and strung-out are semantically related. Sometimes you can use "Spring up" instead a verb phrase "Strung-out".