Here are some insulting one liners which can insult others without slang....
Contribution from your part will be highly appreciated

• never seen such a dumbass like u in mah lyf...get some work other wise this shitty world wont let u breathe widout any reason.
• you are so fat that,when you stood on a weighing machine it read "TO BE CONTINUED" 
•  Sometimes I need what only you can provide: your absence.
• Keep talking.. someday you will say something intelligent!
  
  
  
  
  
• sorry if i laughed..i didn't mean to do it on your face...after all,even the worst of losers should be shown some kindness...not all are born equal u see.. 
• GOD made you!! That proves that even god has a sense of HUMOUR 
• Take this money, repair ur spaceship ,and go back to the planet u came from...
• why you are like ball..whenever i see you.. i feel like kicking at the goal 
• any similarity between you and a human is purely coincidental! 
• U have a brain like Einstein's - dead since 1955!! 
• Your so boring, if you threw a boomerang, it wouldn't come back to you! 
• When you get run over by a car, it shouldn't be listed under accidents!! 
• you are so ugly that when you were born CONDOM factory wrote an apology letter to your parents
• u r such a gay that if you find a beautiful gal going on road. you will ask for "if you have a brother or not"
  

• Are you always so stupid or is today a special occasion? 
• Ur Face n my Ass could b Twins.......... 
• you are so ugly that when you were born doctor wanted to put you back 

• you are so ugly that when u smiled at your girl friend she filed a case of sexual harassment
  
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