Dictionary.com
Thesaurus.com
Synonyms

straight up

British  
  1. slang honestly; truly; exactly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

straight up Idioms  
  1. Served without ice, generally said of an alcoholic drink, as in He ordered a martini straight up. Straight was first recorded with this meaning in 1874.