roncachamp
Final Approach
Sorry, Tracey we are being vague and misleading.
Wilco= Will Cooperate
No Joy = Cannot see traffic, looking.
Tally ho = Have traffic in site, will avoid.
None of them are "standard phraseology" as far as I am concerned. You will find a lot of pilots both commercial and GA using terms that are "non standard". Just ask.
WILCO is standard phraseology, it means "I have received your message, understand it, and will comply with it."