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3.
Thermal can mean 3 different things. the first thing it can mean is to have intercourse with. The second is to Murder or Destroy severly. Lastly thermal means to get or be intoxicated
1.Sex-I'm going to thermal that girl I've been talking to lately

2.Murder or severly hurt-That guy has been pissing me off, he's gonna get Thermal'd

3.Intoxicate-Yesterday me and my best friend got completley Thermal'd at jake's party
by Chris Duran June 22, 2007
 
1.
n.a sweater like shirt worn my males and females
"All I need is a thermal and a white tee"
by doobie-montague April 11, 2005
 
2.
adjective-----not being able to tell people within a four year younger range the truth fearing that they are too young and that you will corrupt them..hahhhahh
Andrea (15 year old): Wow...that college guy is so thermal...he wouldn't tell me what he did last because he thinks that I'm to naive to handle it.
by caroliiiiiii January 13, 2010