questions about usage of two phrases

you are most likely to get skewered for if you screw up.

skewered for 是 being screwed的意思吗？

screw up 这里可以什么都不加就用吗？我总觉得是screw things up, or screw up things.

所有跟帖： 

• haha... I had a meeting this morning at work -学英语3151- ♀ (161 bytes) () 06/22/2011 postreply 10:58:03

• I believe screwed up and screw up are two different phases -金迷- ♂ (163 bytes) () 06/22/2011 postreply 11:06:52

• 回复：I believe screwed up and screw up are two different phases -学英语3151- ♀ (182 bytes) () 06/22/2011 postreply 11:13:46

• 再加两句 -学英语3151- ♀ (140 bytes) () 06/22/2011 postreply 13:07:36