Tom Varndell grabbed a hat-trick against London Welsh at the Kassam Stadium as Wasps recorded their first away Aviva Premiership Rugby win of 2015.
Despite defeat last time out against Bath Rugby confirming that London Welsh will finish 12th this season, the hosts trailed by just four points shortly after half-time as they proved they will fight until the bitter end.
But Ashley Johnson dotted down and Varndell added to the two tries he grabbed in the first half, before Sailosi Tagicakibau secured Wasps the bonus point and Alapati Leiua got in on the act with the last play of the game.
And despite going down to another defeat Welsh can be proud of how they battled, with Opeti Fonua and Chris Elder going over in each half for the home side.
Wasps got off to a fast start at the Kassam as they went 12 points clear after as many minutes.
The visitors found the tryline after only four minutes as Varndell broke down the right flank and scored in the corner, veteran fly-half Andy Goode converting well from a tight angle.
Welsh then went down to 14 men eight minutes later when Koree Britton was sin binned for pulling down a maul and Wasps instantly capitalised as Varndell grabbed his second try.
The Exiles crept back into the game, however, keeping the pressure on the Wasps defence and Fonua forced his way through to make it 5-12.
Tristan Roberts was wide with the conversion, and while Wasps ended the half in the ascendancy they were unable to add to the scoreline in the first 40 minutes.
Welsh started the half well and Roberts made amends for his earlier miss as he calmly kicked a penalty between the posts to reduce the arrears even further.
But Wasps soon began to dominate and a lineout close to the try-line was bundled over by Johnson in his first start as hooker.
Then a swift break down the right saw Varndell free to run back around the Welsh defence and score under the posts for his hat-trick.
Elder scored a try out of nowhere four minutes later for the Exiles on his Aviva Premiership debut, as he found space on the left wing to score in the corner.
Wasps instantly replied though as Tagicakibau finished a great run through the centre by reaching for the line.
And the game ended on a high for Wasps as Leiua finished the scoring with a darting run through the middle.