Top definition
A name given to somebody (Pronounced as "Ronsenior", like its one word) Who fits the following categories:

1. Must have appeared on Jeremy Kyle, Or any equivalent.

2. Must Answer all questions with "Yes Lady" and "No Sir", Brainwash as appropriate.

3. Must Have stolen at least 25k (Preferably 40k) from a close family member.

Anybody called a Ronsenior is a genius by his own wit and expertise in cunning.

A: Dude Your such a Ron Senior
B: Lol! I know!
by Stoaty-Fox March 23, 2009
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