The phrase "spike up" is not typically used in written English. It is more often used as a verbal phrase in informal contexts. For example, you could say, "We need to spike up our sales numbers this quarter."
This deal is not a bet that newspaper readership is about to spike up".
"But if too many of them come, they spike up again".
Like mile markers, brick chimneys spike up from foundations, the only remains of expensive homes.
But MSG's rating didn't actually spike up until late in the game.
The copy says, "Kids will spend 11 minutes dressing Spike up like a princess.
The shift will create immense budgetary pressures as the costs for Social Security benefits and Medicare health coverage spike up.
He illustrates how the characters' moods spike up and downward, depending on what substances they have been ingesting.
At the same time, her sleek tailoring and coats tipped with vinyl would spike up any woman's wardrobe.
"It is a bit ironic, but interest in Arctic wildlife seems to spike up whenever we've had a pro-oil Republican administration in the White House".
When the Revenue starts to apply pressure on businesses that are behind on tax – and this could happen sooner rather than later – company insolvencies will spike up sharply".
If Greece and Portugal and other periphery countries dropped out, the euro would spike up, making Volkswagens and BMWs a lot more expensive.
