An alternate way to describe a high ten, primarily used in written communication andabbreviated as THS. Example: Woo hoo, we won the tournament! Two-handed slap! (props to Christine at blahblahblog.com)
TWO-HANDED SLAP
Meaning of TWO-HANDED SLAP in English
Slang English vocab. Английский сленговый словарь. 2012