Feel your oats

Hay, can you please tell me what the meaning and origin of this phrase is. tanks ,sax

I can't be definite at all, but the word "oats" is figuratively and humorously used to refer to sexual relations, as in "sowing one's wild oats" or the (British?) slang "Did you get your oats last night?". Feeling one's oats may therefore mean feeling lustful.