spike up
The phrase "spike up" can refer to sharp increases, becoming pointed, or drug injection, depending on the context.
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Definition
B2General
(common)To increase sharply or suddenly.
Example
- The temperature is expected to spike up tomorrow.
- During the pandemic, the number of cases spiked up rapidly.
B2Appearance
(common)To become raised and pointed in appearance.
Example
- His hair spiked up after using the new gel.
- The porcupine's quills spiked up when it sensed danger.
C1Drug Use
(slang)To inject drugs with a needle.
Example
- He went to the alley to spike up.
- They warned about the dangers of spiking up.
Similar
Terms that have similar or relatively close meanings to "spike up":
spike heelkick upshoot upjack upball uphot upspice upspin upsparkle upjump upbump uppump uppitch uphop upblast upwedge upamp uppunch upstiff upvamp upjerk upchange up