Splipped droost

Splipped droost is an abbreviation which stands for "spike-clipped dream boost". It's notable for being the "only" time anyone uses the term spiked-clipped (usually just saying spiked) and dream boost (which just isn't a real thing) and refers to Madeline's hitbox passing through a dream block but not her hurtbox.

The whole concept of a splipped droost (usually) is a bit of satirically poking fun at the Celeste community's tendency to abbreviate many techs (e.g. wounce → wallbounce, cassoosted fuper → cassette-boosted feather super, roboboost/mb6fbhsphdrcb → moving block 6 frame bunnyhop subpixel hyperdash reverse cornerboost, dryper → dream hyper, swoosted fyper → swap block boosted failed hyper, gwoost → grounded wallboost, spop → spiked ceiling pop)