| parlay |
| piggyback(continue, boost, goose, include, reply) |
| pour it on |
| reinforce(verb, support, stimulate, excite, boost) |
| rouse(verb, stimulate, cheer, animate, enhance) |
| run up(expression, continue, improve, boost, enhance) |
| slap on(verb, expression, phrasal verb, increase, develop) |
| snowball(verb, increase, develop, continue, extend) |
| speed up(expression, continue, boost, include, reply) |
| spike |
| strengthen(verb, support, stimulate, excite, boost) |
| supplement(verb, develop, continue, improve, boost) |
| sweeten |
| tack on(expression, continue, boost, goose, include) |
| work up(verb, expression, phrasal verb, stimulate, excite) |
| zap(verb, stimulate, excite, boost, cheer) |
| zip up(verb, expression, phrasal verb, see, provoke) |
| accelerate |
| actify(stimulate, excite, boost, strengthen, animate) |
| activize(stimulate, excite, boost, strengthen, animate) |