on (one’s) bicycle adj. in boxing, constantly moving around a ring (to avoid an opponent). (source: Double-Tongued Dictionary)
Further reading
A Francophone who’s feeling low might say so with J’ai le moral dans les chaussettes. The idiom avoir le moral dans les chaussettes means “to have morale in your socks.” This is part of a complete episode.
Related
Quiz Guy John Chaneski has been pondering those old digital displays on car dashboards that sometimes cut off part of the name of the song playing on the radio. For example, what song would really be playing if the truncated title was...