have one's guard up
English
Verb
have one's guard up (third-person singular simple present has one's guard up, present participle having one's guard up, simple past and past participle had one's guard up)
- Synonym of keep one's guard up.
have one's guard up (third-person singular simple present has one's guard up, present participle having one's guard up, simple past and past participle had one's guard up)