The crossword solutions for the term 'WELL, WHADDYA KNOW!' are AHA (3 letters), GEE (3 letters), OHO (3 letters), and SHUTMYMOUTH (11 letters). AHA is an expression of surprise or realization, GEE is an expression of surprise, OHO is an expression of surprise or realization, and SHUTMYMOUTH is an expression of disbelief. All of these expressions are used to express surprise or disbelief in response to something unexpected.