work up a sweat

: activity in which one exerts strength or faculties to do or perform something:

: sustained physical or mental effort to overcome obstacles and achieve an objective or result

: activity that a person engages in regularly to earn a livelihood

: used for work

: suitable or styled for wear while working

: involving or engaged in work

: to bring to pass : effect

: to fashion or create a useful or desired product by expending labor or exertion on : forge, shape

: to make or decorate with needlework

: in or into a higher position or level

: from beneath the ground or water to the surface

: from below the horizon

: risen above the horizon

: standing

: being out of bed

used as a function word to indicate motion to or toward or situation at a higher point of

: up into or in the

: in a direction regarded as being toward or near the upper end or part of

: one in a high or advantageous position

: an upward slope

: a period or state of prosperity or success

: to rise from a lying or sitting position

: to move upward : ascend

used with and and another verb to indicate that the action of the following verb was either surprisingly or abruptly initiated

: to excrete moisture in visible quantities through the openings of the sweat glands : perspire

: to labor or exert oneself so as to cause perspiration

: to emit or exude moisture

: hard work : drudgery

: the fluid excreted from the sweat glands of the skin : perspiration

: moisture issuing from or gathering in drops on a surface