Х10
ДЕРЖАТЬ ХВОСТ ТРУБОЙ (МОРКОВКОЙ, ПИСТОЛЕТОМ)
highly coll ,
humorVPsubj:
humanusu. imper
fixed WO to remain hopeful, cheerful, and brave ( usu. in refer, to coping with difficult circumstances or some challenge): держи хвост трубой - keep your chin (spirits) up
hang in therecheer up.