(cycling) Riding out of the saddle, standing up, and rocking from side to side for leverage

on the sly, secretly

crew cut

full-length, en pied

either before a wine is bottled or while it is in bottle but has not yet fully matured (used in connection with buying new wine)

(informal) on the sly, secretly

(informal) to go through hell, to suffer, to have a hard time, to have a rough time of it; to go through the mill (with a purpose)

(informal, followed by the preposition de) experiencing withdrawal symptoms; in need of something / (informal, used absolutely) frustrated, especially sexually

in principle, in theory, theoretically

in principle, in theory, theoretically