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1.
Sexual lexicon. A person's knowledge of sexual terms and phrases.
Your sexicon is so limited. How did you not know what a bear was?
by RoCoCoCo September 21, 2011
 
2.
Noun
1) of or relating to one's sexual repertoire
2) vocabulary used during sex
1) The "backward cowgirl" position was a staple in her sexicon.

2) His sexicon was quite limited, it pretty much included only "oh baby" and "yes, yes, yes."
by curlyfryintheboxoftheregular2 September 08, 2009