The crossword solutions for the term 'HERE WE GO ___!' are 'AGAIN' (5 letters), 'WHEE' (4 letters), 'OHBOY' (5 letters), and 'THISISIT' (8 letters). These words are often used to express excitement or anticipation, usually when beginning a new activity. 'AGAIN' implies that the activity has been done before, while 'whee' is an exclamation of joy. 'Ohboy' is another expression of enthusiasm, and 'thisisit' is used to indicate that the moment has arrived.