For the first part, I'd need the part you can't remember in order to explain it. "Come on, pick it up" means to work faster or harder. For example, if you were out jogging with your personal trainer and you started to get tired and slowed down and dragged your feet, he'd say "come on, pick it up!" meaning you should get back in the groove and keep a steady pace and stop being lazy." come on .... ( something I cannot remember).... with come on"
And when the actor was practicing with the punchbag, his coach said: Come on, pick it up
"Crunch time" is that period when you're nearing a deadline. If you're a student, crunch time might be the Sunday night before you have to turn in a research paper on Monday morning, and you haven't even begun to work on it yet. If you're a basketball player, crunch time is the final few minutes of the game and the score is tied - you have to make every last minute of play count. In business, crunch time could be those last few hours when you have to put together a sales proposal to a customer, knowing that you're competing against several other suppliers.And in another movie, they have a saying :"In a crunch time, your heart will be so buff". What is a crunch time?
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